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The North American Numbering Plan (NANP) divides the regions of its member nations (primarily in North America, including the Caribbean) into geographic numbering plan areas (NPAs). Each area is assigned a three-digit area code which is prefixed to each telephone number issued in its service area. Some areas are assigned multiple codes in an overlay plan.

The rules for numbering NPAs do not permit the digits 0 and 1 as the leading digit, which also applies for central office codes. 093502491 has been used traditionally for operator-assisted telephone calls, and the digit 1 was traditionally ignored in switching equipment as a leading digit, because it could not be distinguished reliably from intermittent loop disconnections.^[1] (In addition, in Canada the number 1-1-2 is considered an alternate for 9-1-1.) NPAs with 9 as the second digit are reserved for future format expansion. Area codes with the last two digits matching, such as 322 and 800, are considered easily recognizable codes (ERC), where the series of 8xx are used for toll-free services.

Area codes in numerical order

200–299

Code	Territory or use	Notes
200	not in use	easily recognizable code (ERC)
201	New Jersey (Hackensack, Jersey City, Hoboken, Bayonne, Ridgewood, Ramsey, and most of northeastern New Jersey)	originally covered all of New Jersey 1958, split to create 609 1991, split to create 908 1997, split to create 973 2001, overlaid by 551
202	Washington, D.C. (all)
203	Connecticut (Bridgeport, Danbury, New Haven, Waterbury, and southwestern Connecticut)	originally covered all of Connecticut 1995, split to create 860 2009, overlaid by 475
204	Manitoba	2012, overlaid by 431 area code 584 is reserved as a third code for the region
205	Alabama (Birmingham; Tuscaloosa, and parts of western and central Alabama)	originally covered all of Alabama 1995, split to create 334 1998, split to create 256 to be overlaid with 659 in 2019
206	Washington (Seattle, all of Bainbridge, Mercer, and Vashon islands, Burien, Des Moines, Lake Forest Park, Normandy Park, Sea-Tac, Shoreline, Tukwila, and some small unincorporated areas adjacent to these. Also, parts of Woodway and Edmonds)	originally covered all of Washington 1957, split to create 509 1995, split to create 360 1997, split to create 425 and 253
207	Maine (all except Estcourt Station)
208	Idaho	2017, overlaid by 986
209	California (Stockton, Modesto, Merced, Tracy, San Andreas, and part of central California extending into central Yosemite National Park)	1958, created by a split from 916 1998, split to create 559
210	Texas (San Antonio metropolitan area)	1992, created by a split from 512 1997, split three ways to create 830 and 956 2017, overlaid by 726
211	Not an area code—used to reach community services, or the local/regional information service
212	New York (New York City: Manhattan only, except for Marble Hill)	1947, created as an area code for all of New York City 1984, split to create 718, with Manhattan and The Bronx staying in 212 1992, the Bronx switched to 718 1992, overlaid by 917 1999, overlaid by 646 2017, overlaid by 332
213	California (nearly the entire city of Los Angeles outside of the San Fernando Valley, including Hollywood, plus a number of smaller cities and unincorporated areas of Los Angeles County immediately to the south and/or east)	originally covered the southern third of California 1951, split to create 714 1957, split to create 805 1984, split to create 818 1991, split to create 310 1998, split to create 323 2017, re-merged with 323 as an overlay
214	Texas (Dallas metropolitan area)	1953, split to create 817 1990, split to create 903 1996, split to create 972 1999, 214 and 972 were merged and overlaid with 469
215	Pennsylvania (Philadelphia area, including all of Philadelphia and its suburbs in eastern Montgomery County and most of Bucks County as well as a very small portion of Berks County around the Hereford area, which is served by the Pennsburg 679 exchange)	1994, split to create 610 1997, overlaid by 267 2018, overlaid by 445
216	Ohio (Cleveland area)	1997, split three ways to create 330 and 440
217	Illinois (Springfield, Champaign, Decatur, Urbana, Lincoln, and parts of central Illinois)	1957, split to create a part of 309 to be overlaid with 447 in the future
218	Minnesota (Duluth, Moorhead, Thief River Falls, Bemidji, Brainerd, International Falls, and most of northern Minnesota)	1954, split to create 507
219	Indiana (Gary, Chesterton, Crown Point, East Chicago, Hammond, Hobart, Merrillville, Michigan City, Portage, Valparaiso)	1948, created by a split from 317 2002, split to create 260 and 574
220	Ohio (Suburban Columbus, central Ohio outside of Franklin County, excluding the Marysville area, together with southeastern Ohio: Athens, Lancaster, Cambridge, Delaware, Ironton, Marietta, Mt. Vernon, Newark, Portsmouth, Steubenville, Washington Court House, and Zanesville)	overlay of area code 740 activated in 2015
221	not in use
222	not in use	easily recognizable code (ERC)
223	Pennsylvania (Harrisburg, Gettysburg, Lancaster, York and most of south-central Pennsylvania)	overlay of 717
224	Illinois (North and northwest suburbs of Chicago, including Lake, northern Cook, northern Kane, and extreme southeastern McHenry Counties. Includes Evanston, Skokie, Niles, Park Ridge, Des Plaines, Mount Prospect, Arlington Heights, Palatine, Wheeling, Buffalo Grove, Barrington, Elk Grove Village, Schaumburg, Hoffman Estates, Elgin, Carpentersville, Algonquin, Lake in the Hills, Huntley, Hampshire, Cary, Lake Zurich, Fox Lake, Round Lake Beach, Antioch, Gurnee, Waukegan, Zion, Lake Forest, Vernon Hills, Libertyville, Mundelein, Northbrook, Glenview, Deerfield, Highland Park, Wilmette, Winnetka)	2002, overlaid on 847
225	Louisiana (Baton Rouge, Donaldsonville, New Roads, White Castle, and east-central Louisiana)	1998, created by split from 504 mnemonic: CAJun
226	Ontario (London, Windsor, Kitchener-Waterloo, Cambridge, and most of southwestern Ontario)	2006, overlaid on 519 2016, overlaid by 548 area code 382 is reserved as a fourth code for the region mnemonic: CANada
227	a proposed overlay of 240 and 301 (Maryland), but no date has been scheduled for this to go into effect
228	Mississippi (Gulfport, Biloxi, Pascagoula, Bay St. Louis, and southmost Mississippi)	1997, created by a split from 601
229	Georgia (Albany, Valdosta, Bainbridge, Americus, Fitzgerald, and most of southwestern Georgia)	2000, created by a split from 912
230	not in use
231	Michigan (Muskegon, Traverse City, Ludington, Petoskey, and part of northwestern Michigan)	1999, created by a split from 616
232	not in use
233	not in use	easily recognizable code (ERC)
234	Ohio (Akron, Canton, Youngstown, Warren, and most of northeastern Ohio)	2000, overlaid on 330
235	not in use
236	British Columbia	2013, overlaid on 604, 250, and 778^[2] 2019, overlaid by 672
237–238	not in use
239	Florida (southwest coast: all of Lee County, Collier County, the mainland part of Monroe County, including Cape Coral, Fort Myers, Naples, and Everglades)	2003, created by a split from 941
240	Maryland (southern and western parts)	1997, overlaid on 301 to be overlaid with 227 in the future
241	not in use
242	The Bahamas (all)	1996, created by a split from 809 mnemonic: BHA
243	not in use
244	not in use	easily recognizable code (ERC)
245	not in use
246	Barbados (all)	1996, created by a split from 809 mnemonic: BIM
247	not in use
248	Michigan (Oakland County)	1997, created by a split from 810 2002, overlaid by 947
249	Ontario (Northeastern Ontario and Central Ontario: Greater Sudbury, Sault Ste. Marie, North Bay, etc.)	2011, overlaid on 705 area code 683 is reserved as a third code for the region
250	British Columbia (Victoria, Prince George, Prince Rupert, Kelowna, all areas except for Vancouver); also for Hyder, Alaska	1996, created by a split from 604 2008, overlaid by 778 (see 604) 2013, overlaid by 236 2019, overlaid by 672
251	Alabama (Mobile County, Baldwin County, Bay Minette, Jackson, Brewton, Citronelle, and part of southwestern Alabama)	2001, created by a split from 334
252	North Carolina (Greenville, New Bern, Elizabeth City, Kinston, Outer Banks, Rocky Mount)	1998, created by a split from 919
253	Washington (Tacoma, Lakewood, Auburn, Puyallup, Enumclaw, Spanaway, and the southern suburbs of Seattle)	1997, created by a split from 206
254	Texas (Waco, Killeen, Temple, Belton, and Stephenville)	1997, created by a split from 817
255	not in use	easily recognizable code (ERC)
256	Alabama (Huntsville, Decatur, Cullman, Gadsden, Madison, Florence, Sheffield, Tuscumbia, Fort Payne, Scottsboro, and most of northern Alabama)	1998, created by a split from 205 2010, overlaid by 938
257	not in use	set aside for Canadian use, but no date has been scheduled for this to go into effect
258–259	not in use
260	Indiana (Fort Wayne, New Haven, Decatur, Angola, Huntington, Wabash, and most of northeastern Indiana)	2002, created by a split from 219.
261	not in use
262	Wisconsin (Racine, Kenosha, Menomonee Falls, Waukesha, and most of southeastern Wisconsin excluding Milwaukee County)	1999, created by a split from 414
263	Quebec: Montreal metropolitan area	reserved as a third area code to overlay 514 and 438 with no set date for implementation
264	Anguilla (all)	1997, created by a split from 809 mnemonic: ANG
265	not in use
266	not in use	easily recognizable code (ERC)
267	Pennsylvania (Philadelphia and surrounding suburban area)	1997, overlaid on 215
268	Antigua and Barbuda (all)	1996, created by a split from 809 mnemonic: ANT
269	Michigan (Battle Creek, Kalamazoo, Benton Harbor, Allegan, Hastings, St. Joseph, and most of southwestern Michigan)	2002, created by a split from 616
270	Kentucky (Owensboro, Paducah, Bowling Green, Hopkinsville, Henderson, Elizabethtown, and most of western Kentucky)	1999, created by a split from 502 2014, overlaid by 364
271	not in use
272	Pennsylvania (northeastern)	2013, overlaid on 570
273	not in use	set aside for Canadian use, but no date has been scheduled for this to go into effect
274	proposed overlay of 920 (Wisconsin), but no date has been scheduled for this to go into effect
275	not in use
276	Virginia (Bristol, Abingdon, Wytheville, Martinsville, Bluefield, Big Stone Gap, and the remainder of southwestern Virginia)	2001, created by a split from 540
277	not in use	easily recognizable code (ERC)
278	was a planned overlay for Michigan's 734, but this has been canceled
279	California (the Sacramento Metropolitan Area)	2018, overlaid on 916
280	not in use
281	Texas (Houston area)	1996, created by a split from 713 1999, re-merged with 713 as an overlay 1999, overlaid with 832 2014, overlaid with 346
282	not in use
283	proposed overlay of 513 (southwest Ohio), but no date has been scheduled for this to go into effect (ten-thousands blocks have been assigned to a switch in Cincinnati, Ohio)^[3]
284	the British Virgin Islands (all)	1997, created by a split from 809 mnemonic: BVI
285–287	not in use
288	not in use	easily recognizable code (ERC)
289	Ontario (Oshawa-Hamilton and Golden Horseshoe, excluding Toronto 416 but including its adjacent suburbs)	2001, overlaid on 905 2013, overlaid by 365 area code 742 is reserved as a fourth code for the region
290–299	Not in use—reserved for potential North American Numbering Plan expansion

300–399

Code	Territory or use	Notes
300	not in use	easily recognizable code (ERC)
301	Maryland (Silver Spring, Washington, D.C., suburbs, all counties which touch the Potomac River; Hagerstown, Frederick, Rockville, Cumberland, and land line telephones in western Maryland)	originally covered all of Maryland 1991, split to create 410 1997, overlaid by 240 to be overlaid with 227 in the future
302	Delaware (all)
303	Colorado (Denver, Boulder, Longmont, Aurora, Golden, Limon, Centennial; central Colorado)	originally covered all of Colorado 1988, split to create 719 1995, split to create 970 1998, overlaid by 720
304	West Virginia	2009, overlaid by 681
305	Florida (all of Miami-Dade County and the Florida Keys)	originally covered all of Florida 1953, split to create 813 1965, split to create 904 1988, split to create 407 1995, split to create 954 1998, partially overlaid by 786 in Miami-Dade County only 2008, completely overlaid by 786, including the Florida Keys
306	Saskatchewan	2012, overlaid by 639^[4] To be overlaid by 474 on October 2, 2021; implementation date to be announced soon^[5]
307	Wyoming (all)
308	Nebraska (North Platte, Scottsbluff, McCook, Kearney, Grand Island; western Nebraska)	1954, created by a split from 402
309	Illinois (Peoria, Bloomington, Moline, Rock Island, Galesburg; west-central Illinois)	1957, created from parts of 217 and 815
310	California (southwestern coastal and coastal-adjacent areas of Los Angeles County, including Beverly Hills, Brentwood, Malibu, Pacific Palisades, Redondo Beach, Santa Monica and Torrance, as well as Santa Catalina Island)	1991, created by a split from 213 1997, split to create 562 2006, overlaid by 424
311	Not an area code—used for non-emergency calls to local government, or to reach the city or county hall in some localities
312	Illinois (downtown Chicago)	1989, split to create 708 1996, split to create 773 2009, overlaid by 872
313	Michigan (Dearborn, the Grosse Pointes; Detroit and its enclaves of Hamtramck and Highland Park)	1993, split to create 810 1997, split to create 734 to be overlaid with 679 in the future
314	Missouri (St. Louis, St. Louis County, Florissant, Crestwood, Hazelwood, Kirkwood, and surrounding suburbs of St. Louis)	1950, split to create a part of 417 1996, split to create 573 1999, split to create 636
315	New York (Syracuse, Utica, Watertown; north-central New York)	1954, split to create a part of 607 2017, overlaid with 680
316	Kansas (Wichita metropolitan area, McConnell Air Force Base, Augusta, El Dorado, Mulvane, and Hutchinson)	2001, split to create 620
317	Indiana (Indianapolis and immediate metro area including Carmel, Fishers, Noblesville, Westfield, Greenwood, Mooresville, Beech Grove, Plainfield, Avon, Brownsburg, and Zionsville)	1948, split to create 219 1997, split to create 765 2016, overlaid with 463
318	Louisiana (Shreveport–Bossier City, Monroe, Alexandria, Fisher, Tallulah, and most of northern Louisiana)	originally used temporarily for the San Francisco Bay Area until 1953.^[6] 1957, created by a split from 504 1999, split to create 337
319	Iowa (Cedar Rapids, Waterloo, Burlington, Iowa City; parts of eastern Iowa)	2001, split to create 563
320	Minnesota (St. Cloud, Alexandria, Morris, Hutchinson, Sandstone, Appleton, Willmar; central Minnesota)	1996, created by a split from 612
321	Florida (Orlando, Cocoa, Melbourne, Rockledge, Titusville, St Cloud, and east-central Florida). 321 partially overlays 407; 321 is the exclusive code for the Space Coast (Cape Canaveral, Titusville, Cocoa, Cocoa Beach, Satellite Beach, Melbourne, Merritt Island, Palm Bay)	1999, created by a simultaneous split and overlay of the 407 area code. 321 became the exclusive area code for the Space Coast (the "split" portion of the relief) while also overlaying the remainder of 407 (with the exception of a small portion of Volusia County, which has since been reassigned to the neighboring 386 area code) is the only area code in North America that serves as both the sole area code for one geographic area while simultaneously overlaying the entire geographic region of a different area code 2002, all remaining 321 NXX codes were frozen so that all future 321 NXXs will serve Brevard County (i.e., the Space Coast "split" portion of 321) exclusively, including Cocoa, Cocoa Beach, Eau Gallie, Melbourne and Titusville. was originally assigned as the relief area code for Chicago's 312; however, it was reassigned to this part of Florida after a successful petition, led by local resident Robert Osband, to commemorate the Space Coast's impact on Brevard County (321 is mnemonic: the final digits of a rocket countdown before blastoff are 3-2-1) As of 2019, 321 numbers were no longer being assigned to customers located in the geographic area served by 407, and previously assigned 321 numbers for this area were being "reabsorbed" as customers terminated service (with new customers being assigned numbers in the region's new 689 overlay area code). These numbers will, at some point in the future, be reassigned to customers living in the Gold Coast region of Florida so that eventually, 321 will exclusively serve Florida's Gold Coast.
322	not in use	easily recognizable code (ERC)
323	California (nearly the entire city of Los Angeles outside of the San Fernando Valley, including Hollywood, plus a number of smaller cities and unincorporated areas of Los Angeles County immediately to the south and/or east)	1998, created by a split from 213 2017, re-merged with 213 as an overlay
324	not in use
325	Texas (Abilene, San Angelo, Sweetwater, Snyder)	2003, created by a split from 915
326	Future overlay of Ohio's 937; taking effect in 2020
327	a proposed overlay of 870, but no date has been scheduled for this to go into effect
328–329	not in use
330	Ohio (Akron, Canton, Youngstown, Warren, and most of northeastern Ohio)	1997, created by a split from 216 2000, overlaid by 234
331	Illinois (Aurora, Naperville, Oswego; western suburbs of Chicago)	2007, overlaid on 630
332	New York (New York City: Manhattan only, except for Marble Hill)	2017, created as an overlay of 212, 646, and part of 917
333	not in use	easily recognizable code (ERC)
334	Alabama (Montgomery, Auburn, Dothan, Enterprise, Eufaula, Opelika, Phenix City, Selma, Tuskegee and most of southeastern Alabama)	1995, created by a split from 205 2001, split to create 251
335	not in use
336	North Carolina (the Piedmont Triad, Wilkesboro, Roxboro, and most of northwestern North Carolina)	1997, created by a split from 910 2016, overlaid by 743
337	Louisiana (Lafayette, Lake Charles, Leesville, New Iberia, Opelousas, and most of southwestern Louisiana)	1999, created by a split from 318
338	not in use
339	Massachusetts (Boston, South Shore)	2001, overlaid on 781
340	the U.S. Virgin Islands (all)	1997, created by a split from 809
341	California (coastal regions of the East Bay—Oakland, Fremont, Hayward, Richmond, Berkeley and Alameda)	2019, overlaid on 510
342	not in use
343	Ontario: (Ottawa metropolitan area and southeastern Ontario)	2010, overlaid on 613 area code 753 is reserved as a third code for the region
344	not in use	easily recognizable code (ERC)
345	the Cayman Islands (all)	1996, created by a split from 809
346	Texas (Houston area) The 346 area code overlays existing area codes 713, 281 and 832 in Harris, Fort Bend, Waller, Austin, Montgomery, San Jacinto, Liberty, Chambers, Galveston and Brazoria counties.^[7]	2014, overlaid on 281, 713, and 832
347	New York (New York City: The Bronx, Brooklyn, Queens, Staten Island, and Marble Hill)	1999, overlaid on 718 and part of 917 2011, overlaid by 929
348–350	not in use
351	Massachusetts (northeastern)	2001, overlaid on 978
352	Florida (Gainesville, Ocala, Inverness, Dunnellon, and part of central Florida)	1995, created by a split from 904 mnemonic: FLA
353	not in use	set aside for U.S. use
354	Quebec (central southern Quebec; surrounding City of Montreal)	Will overlay 450/579 on October 24, 2020.
355	not in use	easily recognizable code (ERC)
356–359	not in use	356 was authorized for use as a relief area code in New Jersey; however, 862 was used instead, since the proposed code was considered to be too similar to southern New Jersey's area code 856
360	Washington (Olympia, Vancouver, Bellingham, Bremerton, Port Angeles, Aberdeen, and most of western Washington except the Seattle metropolitan area)	1995, created by a split from 206 2017, overlaid with 564
361	Texas (Corpus Christi, Victoria, George West, and much of south Texas)	1999, created by a split from 512
362–363	not in use
364	Kentucky (Owensboro, Paducah, Bowling Green, Hopkinsville, Henderson, Elizabethtown, and most of western Kentucky)	2014, overlaid on 270
365	Ontario (Oshawa-Hamilton and the Golden Horseshoe, excluding Toronto's 416 but including its adjacent suburbs)	2013, overlaid on 905 and 289^[8] area code 742 is reserved as a fourth code for the region
366	not in use	easily recognizable code (ERC)
367	Quebec (Quebec City, Saguenay, the Gaspé Peninsula, Côte-Nord, Chibougamau, St-Georges), Maine (Estcourt Station)	2018, overlaid on 418/581^[9]^[10]
368	Alberta (Calgary, Edmonton)	Will overlay 587/825 on May 15, 2021.
369	assigned for numbering relief for 707 (northwest California), but this has been suspended indefinitely
370–379	Not in use—block reserved in case consecutive numbers are ever needed	377 is also an ERC
380	Ohio (Columbus and Franklin County)	four blocks of 1,000 numbers each are assigned to a switch in Palm Coast, Florida; and one block to a switch in Shreveport, Louisiana^[3] 2016, overlaid on 614 in Ohio
381	not in use
382	Ontario (London, Windsor, Kitchener-Waterloo, Cambridge, and most of southwestern Ontario)	reserved as a fourth code to overlay 519/226/548 with no set date of implementation
383–384	not in use
385	Utah (Counties of Davis, Morgan, Salt Lake, Utah, and Weber along the Wasatch Front, including the cities of Salt Lake City, Ogden, and Provo)	2009, overlaid on 801
386	Florida (Daytona Beach, Lake City, Live Oak, Crescent City, and parts of northeastern Florida)	2001, created by a split from 904 One of the few area codes serving two or more discontiguous geographic areas—the portion of 386 immediately east of the Florida Panhandle is separated from the Atlantic Coast portion, which includes Daytona Beach, by 904 Mnemonic: FUN
387	Ontario: Toronto metropolitan area	reserved as a fifth area code to overlay 416/647/437/942 with no set date for implementation
388	not in use	easily recognizable code (ERC)
389	not in use
390–399	Not in use—reserved for potential North American Numbering Plan expansion

400–499

Code	Territory or use	Notes
400	not in use	easily recognizable code (ERC)
401	Rhode Island (all)
402	Nebraska (Omaha, Lincoln, Norfolk, Superior, and most of eastern Nebraska)	originally covered all of Nebraska 1954, split to create 308 2011, overlaid by 531
403	Alberta (Calgary, Banff, Red Deer, Medicine Hat, Lethbridge, Brooks, and most of southern Alberta)	originally also covered all of the Yukon Territory and part of the Northwest Territories 1997, split to create a part of 867 1999, split to create 780 all of Alberta (403 and 780) has now been overlaid by 587 and 825
404	Georgia: Atlanta and the Atlanta metropolitan area inside of the Interstate 285 perimeter highway	originally covered all of Georgia, but is now completely surrounded by area code 770, which forms an annulus around it 1954, split to create area code 912 1992, split to create area code 706 1995, split to create area code 770 1998, overlaid by 678
405	Oklahoma (Oklahoma City, Stillwater, Edmond, Norman, Shawnee, and most of central Oklahoma)	originally covered all of Oklahoma 1953, split to create 918 1997, split to create 580 To be overlaid by area code 572 by the end of 2020
406	Montana (all)
407	Florida (Orlando, Sanford, St. Cloud, Kissimmee, and part of east-central Florida)	1988, created by a split from 305 1996, split to create 561 1999, split and overlaid, partially, by 321 2019, overlaid with 689
408	California (San Jose, Cupertino, Los Gatos, Milpitas, Mountain View, Santa Clara, Sunnyvale, and Silicon Valley)	1959, created by a split from 415 1998, split to create 831 2012, overlaid by 669
409	Texas (Beaumont, Galveston, Orange, Port Arthur, and Texas City	1983, created by a split from 713 2000, split to create 936 and 979
410	Maryland (except for St. Mary's County, all counties and cities which touch the Chesapeake Bay, the Atlantic Ocean, or Delaware, including Annapolis, metropolitan Baltimore, Berlin, Cambridge, Ocean City, Princess Anne, and Salisbury) as well as Howard County (Columbia) and Carroll County (Westminster)	1991, created by a split from 301 1997, overlaid by 443 2012, overlaid by 667
411	Not an area code—used as an information number for directory assistance	+1-areacode-555-1212 may also be used for directory assistance
412	Pennsylvania (Pittsburgh region, including McKeesport, Monroeville, Bethel Park, Penn Hills, and Ross; the area code encompasses the majority of Allegheny County and portions of Westmoreland County)	1998, split to create 724 2001, overlaid by 878
413	Massachusetts (Springfield, Pittsfield, Holyoke, Greenfield, and most of Western Massachusetts)
414	Wisconsin (Milwaukee County includes cities of Milwaukee, West Allis, Oak Creek, and others.	1955, split to create a part of 608 1997, split to create 920 1999, split to create 262
415	California (San Francisco, Daly City, Brisbane, and most of Marin County)	1959, split to create 408 and 707 1991, split to create 510 1997, split to create 650 2015, overlaid by 628
416	Ontario (the City of Toronto)	1953, split to create a part of 519 1993, split to create 905 2001, overlaid by 647 2013, overlaid by 437 area code 942 is reserved as a fourth code for the region area code 387 is reserved as a fifth code for the region
417	Missouri (Springfield, Joplin, Branson, Lamar, Lebanon, and most of southwestern Missouri)	1950, created from parts of the area codes 314 and 816
418	Quebec (Quebec City, Saguenay, the Gaspé Peninsula, Côte-Nord, Chibougamau, St-Georges), Maine (Estcourt Station)	2008, overlaid by 581 2018, overlaid by 367.
419	Ohio (Toledo, Sylvania, Mansfield, Lima, Findlay, Sandusky, Bowling Green, and most of northwestern Ohio)	2002, overlaid by 567
420–421	not in use
422	not in use	easily recognizable code (ERC)
423	Tennessee (two discontiguous portions of East Tennessee: Bristol, Johnson City, Kingsport, etc., in the northeast; and Chattanooga, Cleveland, Philadelphia, and McMinnville in the southeast	1995, created by a split from 615 1999, split to create 865
424	California (southwestern coastal and coastal-adjacent areas of Los Angeles County, including Beverly Hills, Brentwood, Malibu, Pacific Palisades, Redondo Beach, Santa Monica and Torrance, as well as Santa Catalina Island)	2006, overlaid on 310
425	Washington (the northern and eastern suburbs of Seattle: Bellevue, Everett, Edmonds, Kirkland, Redmond, Renton, Sammamish, Issaquah, and Lynnwood)	1997, created by a split from 206
426–427	not in use
428	New Brunswick	2020, will be overlaid on 506
429	not in use
430	Texas	2003, overlaid on 903
431	Manitoba	2012, overlaid on 204 area code 584 is reserved as a third code for the region
432	western Texas (West Texas: Midland, Odessa, Big Spring, Alpine, Fort Stockton)	2003, created by a split from 915
433	not in use	easily recognizable code (ERC)
434	Virginia (Charlottesville, Lynchburg, Danville, and south-central Virginia)	2001, created by a split from 804
435	Utah (Cedar City, Logan, Moab, Park City, Price, St. George, Tooele, Vernal and all the rest of Utah, excluding the counties of Davis, Morgan, Salt Lake, Utah, and Weber)	1997, created by a split from 801
436	not in use
437	Ontario: Toronto metropolitan area	2013, overlaid on 416 and 647 area code 942 is reserved as a fourth code for the region area code 387 is reserved as a fifth code for the region
438	Quebec: Montreal metropolitan area	2006, overlaid on 514 area code 263 is reserved as a third code for the region
439	not in use
440	Ohio (surrounding Cleveland on three sides, including: Elyria, Lorain, Oberlin, Ashtabula, and most of north-central Ohio)	1997, created by a split from 216
441	Bermuda (all)	1995, the first of many splits from 809, which formerly covered all the Atlantic and Caribbean islands served by the NANP (the rest of the Caribbean is reached via IDDD); 809 has served the Dominican Republic exclusively since 2000
442	California (most of the desert and mountain portions of the southeastern two-thirds of California: Bishop, Barstow and Death Valley; eastern portions of San Bernardino County and Riverside County, including Victorville, Joshua Tree, 29 Palms, Palm Springs, Palm Desert, and Indio; all of Imperial County, including El Centro; and parts of northern and eastern San Diego County, including Oceanside, Carlsbad and Escondido)	2009, overlaid on 760
443	Maryland	1997, overlaid on 410 2012, overlaid by 667
444	not in use	easily recognizable code (ERC)
445	overlay of 215 and 267 (Philadelphia, Pennsylvania)	created in 2018 one thousands block is assigned to a switch in Tucson, Arizona^[3]
446	not in use
447	a proposed overlay of 217 (Illinois)
448	The Florida Panhandle	Will overlay 850 on August 22, 2020
449	not in use
450	Quebec (central southern Quebec; surrounds City of Montreal)	1998, created by a split from 514 2010, overlaid by 579 area code 354 is reserved as a third code for the region
451–454	not in use
455	not in use	easily recognizable code (ERC)
456	originally reserved for inbound international calls for carrier-specific services	is being phased out starting in November 2017, and the area code will be returned to the pool and made available for future area code relief in 2023
457	not in use	fictitious area code assigned to identify Naked DSL/Dry Loop and dedicated data lines in Saskatchewan
458	Oregon (Eugene, Medford, Bend, Pendleton, Corvallis, Ontario, Burns; excludes the Portland metropolitan area)	2010, overlaid on 541
459	not in use
460	not in use	set aside for Canadian use
461-462	not in use
463	Indiana (Indianapolis and immediate metro area including Carmel, Fishers, Noblesville, Westfield, Greenwood, Mooresville, Beech Grove, Plainfield, Avon, Brownsburg, and Zionsville). Mnemonic: INDiana	2016, overlaid on 317
464	a proposed overlay of 708 (Illinois)
465	not in use
466	not in use	easily recognizable code (ERC)
467	not in use
468	Quebec (Western Québec except Montréal 514 and surrounding area 450. A large area including Abitibi-Témiscamingue, Estrie, Mauricie, Outaouais, Sherbrooke, and Trois-Rivieres)	reserved as an area code to overlay 819/873 with no set date for implementation
469	Texas (Dallas metropolitan area)	1999, overlaid on 214 and 972
470	Georgia (metro Atlanta)	2010, overlaid on area codes 404, 678 and 770
471–472	not in use
473	Grenada (all)	1997, created by a split from 809 mnemonic: GRE or GRD
474	Saskatchewan	To be overlaid on 306/639 on October 2, 2021; implementation date to be announced soon^[11]
475	Connecticut	2009, overlaid on 203
476	not in use
477	not in use	easily recognizable code (ERC)
478	Georgia (Macon, Warner Robins, Swainsboro, Milledgeville, Perry, and part of central Georgia)	2000, created by a split from 912
479	Arkansas (Fort Smith, Fayetteville, Rogers, and most of northwestern Arkansas)	2002, created by a split from 501
480	Arizona (Mesa, Scottsdale, Chandler, Tempe, and the eastern Phoenix metropolitan area)	1999, created by a split from 602
481–483	not in use
484	Pennsylvania	1999, overlaid on 610
485	not in use
486	not in use
487	not in use	set aside for Canadian use, but no date has been scheduled for this to go into effect
488	not in use	easily recognizable code (ERC)
489	not in use
490–499	Not in use—reserved for potential North American Numbering Plan expansion

500–599

Code	Territory or use	Notes
500	reserved for personal communications services
501	Arkansas (Little Rock, Hot Springs, and much of central Arkansas, but not Pine Bluff)	originally covered all of Arkansas 1997, split to create 870 2002, split to create 479
502	Kentucky (Louisville, Frankfort, Shelbyville, Bardstown, and most of north-central Kentucky)	originally covered all of Kentucky 1954, split to create 606 1999, split to create 270
503	Oregon (Portland, Salem, Hillsboro, Beaverton, St. Helens, Tillamook, Astoria and most of northwestern Oregon)	originally covered all of Oregon 1995, split to create 541 2000, partially overlaid by 971, excluding Clatsop County and Tillamook County 2008, complete overlay implemented
504	Louisiana (New Orleans metropolitan area)	originally covered all of Louisiana 1957, split to create 318 1998, split to create 225 2001, split to create 985
505	New Mexico (Albuquerque, Santa Fe, Farmington, Gallup, and all of northwestern New Mexico, and part of central New Mexico)	originally covered all of New Mexico 2007, split to create 575
506	New Brunswick (all)	originally also covered Newfoundland 1955, created by a split from 902 1962, split to give Newfoundland its own 709 area code 2020, will be overlaid by 428
507	Minnesota (Rochester, Mankato, Austin, Marshall, Winona and most of southern Minnesota)	1954, created by a split from 612
508	Massachusetts (Worcester, New Bedford, Fall River, Cape Cod, and most of southeastern Massachusetts)	1988, created by a split from 617 1997, split to create 978 2001, overlaid by 774
509	Washington (all of eastern Washington, including Spokane, Ellensburg, Pullman, the Tri-Cities area, Walla Walla, Wenatchee, and Yakima)	1957, created by a split from 206
510	California (coastal regions of the East Bay—Oakland, Fremont, Hayward, Richmond, Berkeley and Alameda)	until 1981, used by AT&T for its TWX (Telex) service (along with 610, 710, 810, and 910) 1991, created by a split from 415 1998, split to create 925 2019, overlaid by 341
511	Not an area code—used as a local information number for transportation and road conditions, and/or local police non-emergency services
512	Texas (Austin, San Marcos, and parts of central Texas)	1992, split to create 210 1999, split to create 361 2013, overlaid by 737
513	Ohio (Cincinnati, Middletown, Hamilton, Lebanon, and parts of southern and southwestern Ohio. This area code used to also include Dayton)	1996, split to create 937 to be overlaid with 283 in the future
514	Quebec: Montreal metropolitan area	1957, split to create 819 1998, split to create 450 2006, overlaid by 438 area code 263 is reserved as a third code for the region
515	Iowa (Des Moines, Ames, Fort Dodge, Jefferson, Indianola and most of north-central Iowa)	2000, split to create 641
516	New York (Nassau County, including Hempstead and Mineola)	1951, created by a split from 914 1999, split to create 631 mnemonic: Long 1slaNd
517	Michigan (Lansing, Jackson, Charlotte, Deerfield, Addison, and most of south-central Michigan)	2000, split to create 989
518	New York (Albany, Schenectady, Plattsburgh, Saranac Lake, Lake George, Westport, and most of northeastern New York)	2017, overlaid by 838
519	Ontario (London, Windsor, Kitchener-Waterloo, Cambridge, Brantford, Guelph and most of southwestern Ontario)	1953, created from parts of 416 and 613 1957, split to create a part of 705 2006, overlaid by 226 2016, overlaid by 548 area code 382 is reserved as a fourth code for the region
520	Arizona (Tucson, Nogales, Fort Huachuca, and most of southeastern Arizona)	1995, created by a split from 602 2001, split to create 928
521	Personal communications services	effective 21 September 2017
522	Personal communications services	effective 21 August 2016
523	Personal communications services	effective 13 November 2018
524	Personal communications services	effective 12 July 2019
525–529	reserved for personal communications services
530	California (Redding, Auburn, Chico, Davis, the California shore of Lake Tahoe, Placerville, Susanville, Truckee, Yreka, and most of northeastern California)	1997, created by a split from 916
531	Nebraska (Omaha, Lincoln, Norfolk, Superior, and most of eastern Nebraska)	2011, overlaid on 402
532	reserved for personal communications services
533	reserved for personal communications services	Used
534	Wisconsin	2010, overlaid on 715
535	reserved for personal communications services
536	not in use
537	not in use	set aside for Canadian use, but no date has been scheduled for this to go into effect
538	reserved for personal communications services
539	Oklahoma (Tulsa, Bartlesville, McAlester, Muskogee, Henryetta and northeastern Oklahoma)	2011, overlaid on 918
540	Virginia (Fredericksburg, Roanoke, Blacksburg, Harrisonburg, Lexington, Staunton, Winchester, and parts of north-central Virginia)	1995, created by a split from 703 2001, split to create 276
541	Oregon (Eugene, Bend, Corvallis, Medford, Pendleton, and all of Oregon except metropolitan northwestern Oregon, including Portland, Salem, Astoria, etc.)	1995, created by a split from 503 2010, overlaid by 458
542–543	reserved for personal communications services
544	reserved for personal communications services
545	reserved for personal communications services
546	reserved for personal communications services
547	reserved for personal communications services
548	Ontario (London, Windsor, Kitchener-Waterloo, Cambridge, and most of southwestern Ontario)	2016, overlaid on area code complex 519/226 area code 382 is reserved as a fourth code for the region
549	reserved for personal communications services
550	reserved for personal communications services
551	New Jersey	2001, overlaid on 201
552–554	reserved for personal communications services
555	reserved for directory assistance applications, or not in use	note that this is an area code, not an exchange number, as in 555-1212 or other 555 (telephone number) services 1-NPA-555-XXXX is used for fictional telephone numbers with limited use for information numbers and directory assistance
556	reserved for personal communications services
557	Missouri: a planned overlay for 314, but this has been suspended indefinitely
558	reserved for personal communications services
559	California (Fresno, Hanford, Madera, Tulare, Visalia, and parts of the San Joaquin Valley	1998, created by a split from 209
560	not in use
561	Florida (Palm Beach County, including Palm Beach, West Palm Beach, Boca Raton, Boynton Beach, etc.)	1996, created by a split from 407 2002, split to create 772
562	California (Downey, Long Beach, Whittier, Norwalk, La Habra, Lakewood, Pico Rivera, and most of southeastern Los Angeles County)	1997, created by a split from 310
563	Iowa (Davenport, Dubuque, Clinton, Bettendorf, and most of eastern and northeastern Iowa)	2001, created by a split from 319
564	Washington (Olympia, Vancouver, Bellingham, Bremerton, Port Angeles, Aberdeen, and all of western Washington)	2017, overlaid on 360
565	not in use
566	reserved for personal communications services
567	Ohio (Northwest)	2002, overlaid on 419
568	not in use	set aside for Canadian use, but no date has been scheduled for this to go into effect
569	reserved for personal communications services
570	Pennsylvania (the Wyoming Valley, including Scranton and Wilkes-Barre; Bloomsburg; Danville; Nanticoke; Williamsport; and most of northeastern Pennsylvania)	1998, created by a split from 717 2013, overlaid by 272
571	Virginia	2000, overlaid on 703
572	Oklahoma (Oklahoma City, Stillwater, Edmond, Norman, Shawnee, and most of central Oklahoma)	Will overlay 405 on May 24, 2021.
573	Missouri (Columbia, Jefferson City, Hannibal, Cape Girardeau, Farmington, Lake of the Ozarks, Poplar Bluff, and most of eastern Missouri excluding St. Louis County and the City of St. Louis)	1996, created by a split from 314
574	Indiana (South Bend, Elkhart, Goshen, and most of north-central Indiana)	2002, created by a split from 219
575	New Mexico (Las Cruces, Roswell, Carlsbad Caverns National Park, Socorro, Taos, Truth or Consequences; excludes central (Albuquerque and its suburbs) and northwestern New Mexico)	2007, created by a split from 505
576	not in use
577	reserved for personal communications services	Effective 27 March 2014
578	reserved for personal communications services
579	Quebec (central southern Quebec; surrounds City of Montreal)	2010, overlaid on 450 area code 354 is reserved as a third code for the region
580	Oklahoma (Ponca City, Ada, Ardmore, Enid, Lawton, Elk City, and most of southern and western Oklahoma)	1997, created by a split from 405
581	Quebec (Quebec City, Saguenay, the Gaspé Peninsula, Côte-Nord, Chibougamau, St-Georges), Maine (Estcourt Station)	2008, overlaid on 418 2018, overlaid by 367.
582	was proposed for relief of 814 (Pennsylvania), but this has been suspended indefinitely
583	not in use
584	Manitoba	reserved as a third code to overlay 204/431 with no set date of implementation
585	New York (Rochester, Batavia, and much of western New York)	2002, created by a split from 716
586	Michigan (Macomb County)	2001, created by a split from 810
587	Alberta (Calgary, Edmonton)	2008, overlaid on 403 and 780 2016, overlaid by 825 To be overlaid by 368 on May 15, 2021.
588	since 2015, reserved for personal communications services
589	since 2011, reserved for personal communications services
590–599	Not in use—reserved for potential North American Numbering Plan expansion

600–699

Code	Territory or use	Notes
600	Canadian non-geographic, teleprinter, caller-pays mobile	rarely used, but serves some satellite phones in the Canadian high Arctic Canadian TWX services (a kind of Telex) were in area code 610 until 1992, but moved so that code could be reassigned to Pennsylvania 2015, 622 was activated for Canadian non-geographic use area codes 633, 644, 655, 677, and 688 (with 666 skipped) are nominally reserved for future Canadian non-geographic use
601	Mississippi (Jackson, Hattiesburg, Meridian, Natchez, Vicksburg, and most of central Mississippi)	originally covered all of Mississippi 1997, split to create 228 1999, split to create 662 2005, overlaid by 769
602	Arizona (Phoenix)	originally covered all of Arizona 1995, split to create 520 1999, split to create 480 and 623
603	New Hampshire (all)
604	British Columbia (Metro Vancouver Regional District, Whistler, and the remaining portion of 604 not part of an overlay complex)	originally covered all of British Columbia 1996, split to create 250 2001, partly overlaid by 778 2008, the overlay was extended to all of 604 as well as 250 2013, overlaid by 236 2019, overlaid by 672
605	South Dakota (all)
606	Kentucky (Ashland, Pikeville, Hazard, Somerset, London, Corbin, Maysville, and much of eastern Kentucky)	1954, created by a split from 502 2000, split to create 859
607	New York (Binghamton, Elmira, Cortland, Norwich, Ithaca, and most of south-central New York)	1954, created from parts of 315 and 716
608	Wisconsin (Madison, La Crosse, Platteville, Beloit, and most of southwestern Wisconsin)	1955, created from parts of 414 and 715
609	New Jersey (Trenton, Atlantic City, Princeton, and most of central & southeastern New Jersey)	1958, created by a split from 201 1999, split to create 856 2018, overlaid by 640
610	Pennsylvania (Chester, Lehigh Valley, Norristown, Reading; parts of southeastern Pennsylvania)	until 1981, used by AT&T for its TWX (Telex) service (along with 510, 710, 810, and 910); Bell Canada continued to use 610 for this purpose until 1992 1994, created by a split from 215 (for ordinary telephony services) 1999, overlaid by 484
611	Not an area code—used to reach the repair service for land-line telephones, or the customer service for most wireless carriers
612	Minnesota (Minneapolis, Fort Snelling, St. Anthony, and Richfield)	1954, split to create 507 1996, split to create 320 1998, split to create 651 (1998) 2000, split to create 763 and 952
613	Ontario (Ottawa metropolitan area and southeastern Ontario)	1953, split to create a part of 519 1957, split to create a part of 705 2010, overlaid by 343 area code 753 is reserved as a third code for the region
614	Ohio (Columbus and Franklin County)	1997, split to create 740 2016, overlaid by 380
615	Tennessee (Nashville, Lebanon, Murfreesboro, Smyrna, Springfield, and other parts of Middle Tennessee around the Nashville Metropolitan Area^[12])	1954, created by a split from 901 1995, split to create 423 1997, split to create 931 2015, overlaid by 629
616	Michigan (Grand Rapids, Greenville, Holland, Ionia, Zeeland, and most of southwestern Michigan)	1961, split to create 906 1999, split to create 231 2002, split to create 269
617	Massachusetts (Boston, Cambridge, Quincy, Newton, Everett, and the nearby suburbs)	1988, split to create 508 1997, split to create 781 2001, overlaid by 857
618	Illinois (Carbondale, Alton, Belleville, Cahokia, Centralia, Edwardsville, Marion, Metropolis, Vandalia, and most of southern Illinois)	to be overlaid with 730 in the future
619	California (San Diego and suburbs)	1982, created by a split from 714 1997, split to create 760 1999, split to create 858 2017, re-merged with 858 as an overlay
620	Kansas (southern Kansas not including the Wichita Metropolitan Area and Hutchison)	2001, created by a split from 316
621	not in use
622	Canadian non-geographic	activated in 2015 area codes 633, 644, 655, 677, and 688 (with 666 skipped) are nominally reserved for future Canadian non-geographic use
623	Arizona (part of Maricopa County, including Glendale, Buckeye, Goodyear, Peoria, Sun City, and the western half of Phoenix)	1999, created by three-way split from 602 (along with 480)
624–625	not in use
626	California (San Gabriel Valley communities including Alhambra, Arcadia, Azusa, Baldwin Park, Covina, Duarte, El Monte, Glendora, Irwindale, La Puente, Monrovia, Pasadena, Rosemead, San Gabriel, Temple City and West Covina)	1997, created by a split from 818
627	was assigned for numbering relief to area code 707 (the northern California coast), but this has been suspended indefinitely
628	California (San Francisco)	2015, overlaid on 415
629	Tennessee (Middle Tennessee, including Nashville and surrounding area)	2015, overlaid on 615
630	Illinois (western suburbs of Chicago, including DuPage, central and southern Kane, northern Kendall, far northern Will, and small portions of Cook counties)	1996, created by a split from 708 2007, overlaid by 331
631	New York (Suffolk County on Long Island)	1999, created by a split from 516 2016, overlaid with 934
632	not in use
633	nominally reserved to overlay 600, a rarely used Canadian non-geographic code
634–635	not in use
636	Missouri (St. Charles, Chesterfield, Union, Troy, and parts of east-central Missouri)	1999, created by a split from 314
637–638	not in use
639	Saskatchewan	2013, overlaid on 306—originally planned as 474, but was changed to avoid confusion from central office codes^[4] To be overlaid by 474 on October 22, 2021; implementation date to be announced soon^[13]
640	New Jersey (Trenton, Atlantic City, Princeton, and most of central & southeastern New Jersey)	2018, overlaid on 609
641	Iowa (Mason City, Oskaloosa, Creston, Pella, Ottumwa, Britt, Clear Lake, Fairfield, and parts of central Iowa)	2000, created by a split from 515
642–643	not in use
644	nominally reserved to overlay 600, a rarely used Canadian non-geographic code
645	not in use
646	New York (New York City: Manhattan only, except for Marble Hill)	1999, overlaid on 212 and part of 917 2017, overlaid by 332 mnemonic: MHN
647	Ontario	2001, overlaid on 416 2013, overlaid by 437 area code 942 is reserved as a fourth code for the region area code 387 is reserved as a fifth code for the region
648	not in use
649	the Turks and Caicos Islands (all)	1997, created by a split from 809
650	California (Daly City, South San Francisco, Palo Alto, Redwood City, Menlo Park, Mountain View, San Mateo, Santa Clara)	1997, created by a split from 415
651	Minnesota (St. Paul, Eagan, Lindstrom, Red Wing, Hastings, Stillwater and part of east-central Minnesota)	1998, created by a split from 612
652–654	not in use
655	nominally reserved to overlay 600, a rarely used Canadian non-geographic code
656	not in use
657	California: Northern Orange County (Anaheim, Fullerton, Garden Grove, Huntington Beach, Orange, Santa Ana, and portions Newport Beach and Costa Mesa)	2008, overlaid on 714
658	Jamaica
659	Alabama (Birmingham; Tuscaloosa, and parts of western and central Alabama)	2019, overlaid on 205 on November 12, 2019.^[14]
660	Missouri (Sedalia, Kirksville, Maryville, Mexico, Whiteman Air Force Base, and part of north-central Missouri)	1997, created by a split from 816
661	California: Northern Los Angeles County (incl. Lancaster, Palmdale and Santa Clarita) and most of Kern County (incl. Bakersfield, Mojave and Edwards Air Force Base)	1999, created by a split from 805
662	Mississippi (Tupelo, Columbus, Corinth, Greenville, Greenwood, Starkville, and most of northern Mississippi)	1999, created by a split from 601
663	not in use
664	Montserrat (all)	1996, created by a split from 809 mnemonic: MOI
665	not in use
666	not in use	easily recognizable code (ERC)
667	Maryland	2012, created as an overlay of 410 and 443
668	not in use
669	California (San Jose)	2012, overlaid on 408
670	Northern Mariana Islands (the former country code for this present Commonwealth of the United States that includes Saipan, Tinian, and Rota)	1997, inclusion in NANP
671	Guam (the former country code for this possession and unorganized territory of the United States that includes Andersen Air Force Base)	1997, inclusion in NANP
672	British Columbia	2019, overlaid on 604, 250, 778, and 236^[15]
673–676	not in use
677	nominally reserved to overlay 600, a rarely used Canadian non-geographic code
678	Georgia (metro Atlanta)	1998, overlaid on 404 and 770 2010, overlaid by 470
679	assigned for numbering relief to 313 (Michigan), but no date has been scheduled for this to go into effect
680	New York (Syracuse, Utica, Watertown, and north-central New York)	2017, overlaid on 315
681	West Virginia	2009, overlaid on 304
682	Texas	2000, overlaid on 817
683	Ontario: (Northeastern Ontario and Central Ontario: Greater Sudbury, Sault Ste. Marie, North Bay, etc.)	reserved as a third code to overlay 705/249 with no set date of implementation
684	American Samoa (the former country code for this possession and unorganized territory of the United States)	2004, inclusion in NANP
685–687	not in use
688	nominally reserved to overlay 600, a rarely used Canadian non-geographic code
689	Florida (Orlando, Sanford, St. Cloud, Kissimmee, and part of east-central Florida)	2019, overlaid on 407
690–699	Not in use—reserved for potential North American Numbering Plan expansion

700–799

Code	Territory or use	Notes
700	Long-distance carrier use for pre-subscribing phone numbers, 1-700-555-4141 most often gives a recorded message indicating the default carrier on a line. In theory, an interexchange carrier may assign any number in this area code to any carrier-specific service, but this use is rare.
701	North Dakota (all)
702	Nevada (almost all of Clark County, including all of the Las Vegas Valley, including Henderson and Boulder City)	originally covered all of Nevada 1998, split to create 775 2014, overlaid by 725
703	Virginia (Northern Virginia: mostly the suburbs of Washington, D.C., including Alexandria, Arlington County, Fairfax County, Prince William County, and eastern Loudoun County)	originally covered all of Virginia 1973, split to create 804 1995, split to create 540 2000, overlaid by 571
704	North Carolina (Charlotte, Concord, Gastonia, Salisbury, and much of south-central North Carolina)	originally covered all of North Carolina 1954, split to create 919 1998, split to create 828 2001, overlaid by 980
705	Ontario: (Northeastern Ontario and Central Ontario: Greater Sudbury, Sault Ste. Marie, North Bay, etc.)	1957, created from parts of 519 and 613 1962, split to create 807 2011, overlaid by 249 area code 683 is reserved as a third code for the region
706	Georgia (Athens, Augusta, Columbus, Calhoun, Dalton, Rome, and much of northwestern, northeastern and eastern Georgia, with an exclave in midwestern Georgia)	1992, created by a split from 404 2007, overlaid by 762 prior to 1990, served portions of Baja California, Mexico one of the few non-contiguous area codes in North America
707	California (Vallejo, Crescent City, Eureka, Redwoods National Park, Santa Rosa, Ukiah, and most of northwestern California)	1959, created by a split from 415
708	Illinois (Western and southern portions of suburban Cook County and far eastern sections of Will County. Includes Beecher, Berwyn, Brookfield, Bridgeview, Burbank, Calumet City, Chicago Heights, Cicero, Dolton, Elmwood Park, Evergreen Park, Franklin Park, Harvey, Harwood Heights, Hazel Crest, Homer Glen, Homewood, La Grange, Lansing, Matteson, Maywood, Melrose Park, Mokena, Monee, Norridge, Oak Forest, Oak Park, Orland Park, Palos Hills, Park Forest, Peotone, Tinley Park, University Park, and other southern and near western suburbs of Chicago)	1989, created by a split from 312 1996, split twice to create 847 and 630 to be overlaid with 464 in the future
709	Newfoundland and Labrador (all)	1962, created by a split from 506 was to be overlaid with 879 in 2018; however, in 2017, its implementation was suspended when the exhaust date was recalculated for March 2024
710	U.S. Government Special Services	until 1981, used by AT&T for its TWX (Telex) service (along with 510, 610, 810, and 910)
711	Not an area code—used for telecommunications device for the deaf
712	Iowa (Sioux City, Council Bluffs, Denison, and most of western Iowa)	This is one of the original area codes of the U.S. that has gone unchanged and undivided. This is because for some reason, Iowa was given three area codes to begin with back in 1948, even though it did not need that many.
713	Texas (Houston area)—overlays with 281, 346 and 832	1983, split to create 409 1996, split to create 281 713 and 281 were later un-split to become an overlay, and further overlaid by 832 in 1999, and by 346 in 2014
714	California: Northern Orange County (Anaheim, Fullerton, Garden Grove, Huntington Beach, Orange, Santa Ana, and portions Newport Beach and Costa Mesa)	1951, created by a split from 213 1982, split to create 619 1992, split to create 909 1998, split to create 949 2008, overlaid by 657
715	Wisconsin (Wausau, Eau Claire, Rhinelander, and most of northern Wisconsin)	1955, split to create a part of 608 2010, overlaid by 534
716	New York (Buffalo, Niagara Falls, Olean, and parts of western New York)	1954, split to create a part of 607 2002, split to create 585
717	Pennsylvania (Harrisburg, Gettysburg, Lancaster, York and most of south-central Pennsylvania)	1998, split to create 570 2017, overlaid by 223
718	New York (New York City: The Bronx, Brooklyn, Queens, Staten Island, and Marble Hill)	1984, created by a split from 212—originally only Brooklyn, Queens, and Staten Island 1992, The Bronx split off from 212 to become a part of 718 1992, overlaid by 917 1999, overlaid by 347 2011, overlaid by 929
719	Colorado (Colorado Springs, Pueblo, Florence, Leadville, Limon, Trinidad, La Junta, and most of southeastern Colorado)	1988, created by a split from 303
720	Colorado	1998, overlaid on 303
721	Sint Maarten (all)	Joined the NANP on 30 September 2011; previously +599.^[16]
722	not in use	easily recognizable code (ERC)
723	not in use
724	Pennsylvania (Washington, Greensburg, Indiana, New Castle, Uniontown, Butler, and the majority of Southwestern Pennsylvania outside of Pittsburgh's Allegheny County)	1998, created by a split from 412 2001, overlaid by 878
725	Nevada (almost all of Clark County, including all of the Las Vegas Valley, including Henderson and Boulder City)	2014, overlaid on 702
726	Texas (San Antonio metropolitan area)	2017, overlaid on 210
727	Florida (all of Pinellas County including St. Petersburg, Clearwater, Dunedin, Palm Harbor, Tarpon Springs, and the coastal parts of Pasco County)	1998, created by a split from 813
728–729	not in use
730	a proposed overlay of 618 (Illinois)
731	Tennessee (most of West Tennessee—excluding Metropolitan Memphis and Shelby County (area code 901)—but including Dyersburg, Jackson, Martin, Paris, Union City, and Crockett County)	2001, created by a split from 901
732	New Jersey (New Brunswick, Lakewood, Neptune, Fort Dix, and most of east-central New Jersey—but not Atlantic City)	1997, created by a split from 908 2001, overlaid by 848 mnemonic: SEA
733	not in use	easily recognizable code (ERC)
734	Michigan (Ann Arbor, Hell, Monroe, Plymouth, Romulus, Wayne, Ypsilanti, and the southwestern suburbs of Detroit)	1997, created by a split from 313
735–736	not in use
737	Texas	2013, overlaid on 512
738–739	not in use
740	Ohio (Suburban Columbus, central Ohio outside of Franklin County, excluding the Marysville area, together with southeastern Ohio: Athens, Lancaster, Cambridge, Delaware, Ironton, Marietta, Mt. Vernon, Newark, Portsmouth, Steubenville, Washington Court House, and Zanesville)	1997, created by a split from 614 2015, overlaid by 220
741	not in use
742	Ontario (Niagara Falls Region, Hamilton, St. Catharines, suburbs of the Greater Toronto Area, and southeastern Ontario)	reserved as a fourth code to overlay on 289/365/905 with no set date of implementation^[17]
743	North Carolina	2016, overlaid on 336
744	not in use	easily recognizable code (ERC)
745–746	not in use
747	California (the San Fernando Valley portion of Los Angeles County, including Burbank, Canoga Park, Encino, Glendale, North Hollywood, Northridge, Panorama City, Reseda, San Fernando, Sylmar, Tarzana, Van Nuys, and Woodland Hills)	2009, overlaid on 818
748–751	not in use
752	not in use	was planned as an overlay for 909, but this was cancelled; area code 840 was eventually chosen instead to overlay 909
753	Ontario (Ottawa metropolitan area and southeastern Ontario)	reserved as a third code to overlay 613/343 with no set date of implementation
754	Florida	2001, overlaid area code 954
755	not in use	easily recognizable code (ERC)
756	not in use
757	Virginia (Part of Hampton Roads and the Eastern Shore of Virginia)	1996, created by a split from 804 will be overlaid by area code 948 in late 2021 or early 2022
758	Saint Lucia (all)	1996, created by a split from 809 mnemonic: SLU
759	not in use
760	California (most of the desert and mountain portions of the southeastern two-thirds of California: Bishop, Barstow and Death Valley; eastern portions of San Bernardino County and Riverside County, including Victorville, Joshua Tree, 29 Palms, Palm Springs, Palm Desert, and Indio; all of Imperial County, including El Centro; and parts of northern and eastern San Diego County, including Oceanside, Carlsbad and Escondido)	1997, created by a split from 619 this was the first part of North America to have its code changed three times: from 213 to 714 in 1951, to 619 in 1982, and to 760 in 1997 Was to have originally split off the portion of 760 serving San Diego County to a new 442 area code in late 2008/early 2009; that plan was cancelled 2009, overlaid by 442
761	not in use
762	Georgia	overlay of 706
763	Minnesota (Brooklyn Park, Plymouth, Maple Grove, Monticello, Elk River, Fridley, Blaine, and the northwest suburban area of Minneapolis)	2000, created by a three-way split from 612 (along with 952)
764	had been assigned for numbering relief to 650 (western San Francisco Bay, including San Mateo County), but this has been suspended indefinitely
765	Indiana (Kokomo, Lafayette, Marion, Muncie, Richmond, West Lafayette, and most of central Indiana excluding Indianapolis and immediate suburbs)	1997, created by a split from 317
766	not in use	easily recognizable code (ERC)
767	Commonwealth of Dominica (all)	1997, created by a split from 809 mnemonic: ROS for Roseau, Dominica's largest city
768	not in use
769	Mississippi	2005, overlaid on 601
770	Georgia (Marietta, Carrollton, Gainesville, Jonesboro, Lawrenceville, Roswell, Stone Mountain, Snellville, Cartersville, and much of north-central Georgia outside of Atlanta's Interstate 285 Perimeter Highway)	1995, created by a split from 404 1998, overlaid by 678 covers metropolitan areas outside of Atlanta and fully encircles Atlanta's iconic area code 404
771	not in use
772	Florida (Fort Pierce, Port Saint Lucie, Sebastian, Stuart, and Vero Beach, and all of Indian River County and Martin County)	created by a split from 561
773	Illinois (City of Chicago, excluding downtown)	1996, created by a split from 312 2009, overlaid by 872
774	Massachusetts	2001, overlaid on 508
775	Nevada (Carson City, Reno, Elko, Ely, Sparks, Winnemucca, Great Basin National Park, Naval Air Station Fallon, and all of Nevada except for most of Clark County in southernmost Nevada)	1998, created by a split from 702
776	not in use
777	not in use	easily recognizable code (ERC)
778	British Columbia	2001, created as a concentrated overlay of 604 extended in 2008 to cover all of 604 and 250 2013, overlaid by 236 2019, overlaid by 672
779	Illinois	2007, overlaid on 815
780	Alberta (Edmonton, Jasper, Grande Prairie, Peace River, and all of northern Alberta)	1999, created by a split from 403 overlays 587 and also 403 in southern Alberta
781	Massachusetts (Saugus, Norwood, Waltham Woburn, and other suburbs of Boston along Route 128)	1997, created by a split from 617 2001, overlaid by 339
782	Nova Scotia and Prince Edward Island	2014, created to overlay 902
783	not in use
784	Saint Vincent and the Grenadines (all)	1998, created by a split from 809 mnemonic: SVG or SVI
785	Kansas (Topeka, Salina, Colby, Lawrence, Manhattan, and all of northern and central Kansas not including the Kansas City Metropolitan Area)	1997, created by a split from 913
786	Florida (Miami-Dade County and the Florida Keys)	1998, overlaid on 305 only in Miami-Dade County 2008, overlay extended to the Florida Keys mnemonic: SUN
787	Puerto Rico	1996, created by a split from 809 2001, overlaid by 939 mnemonic: PUR or PTR
788	not in use	easily recognizable code (ERC)
789	not in use
790–799	Not in use—reserved for potential North American Numbering Plan expansion

800–899

Code	Territory or use	Notes
800	toll-free telephone service	created in 1966 see also 822, 833, 844, 855, 866, 877, 880–882, 883–887, 888, and 889
801	Utah (Counties of Davis, Morgan, Salt Lake, Utah, and Weber along the Wasatch Front, including the cities of Salt Lake City, Ogden, and Provo)	originally covered all of Utah 1997, split to create 435 2009, overlaid by 385
802	Vermont (all)
803	South Carolina (Columbia, Rock Hill, Sumter, Aiken, and most of central South Carolina)	originally covered all of South Carolina 1995, split to create 864 1998, split twice to create 843 2020, overlaid with 839
804	Virginia (the Richmond Metropolitan Area, including Petersburg; also the Northern Neck and Middle Peninsula)	1973, created by a split from 703 1996, split to create 757 2001, split to create 434
805	California (Ventura, San Luis Obispo and Santa Barbara Counties)	1957, created by a split from 213 1999, split to create 661 2018, overlaid by 820
806	Texas (Lubbock, Amarillo, Canadian, Canyon, Dalhart, and the entire Texas Panhandle)	1957, created from parts of 817 and 915
807	Ontario (Northwestern Ontario: Thunder Bay, Kenora, Dryden, Greenstone)	1962, created by a split from 705
808	Hawaii (covers all of the Hawaiian Islands to Midway Atoll, and major Hawaiian cities including Honolulu, Kailua, Mililani, Haleiwa, Hilo, Kahului, Lihue, etc. Area code also includes Wake Island)
809	Dominican Republic	originally covered most of the Caribbean 1995, split to create 441 1996, split to create 787, 268, 246, 664, 758, 345, 242, and 869 1997, split to create 264, 876, 340, 649, 868, 284, 767, and 473 1998, split to create 784 (1998) by 2000, served the Dominican Republic exclusively 2005, overlaid by 829 2009, overlaid by 849
810	Michigan (Port Huron, Flint, Lapeer, and Michigan "Thumb")	until 1981, used by AT&T for its TWX (Telex) service (along with 510, 610, 710, and 910) 1993, created by a split from 313 1997, split to create 248 2001, split to create 586
811	Not an area code—used as a regional information number, with usage varying by country	the U.S., the FCC adopted it as the local underground utility assistance service in 2007 Canada, the CRTC reserved it for non-urgent telehealth services in 2005, though not all provinces and territories have yet adopted it formerly used for mobile customer service on some carriers (now 6-1-1) formerly used for some local emergency numbers in Jamaica (now 9-1-1)
812	Indiana (Southern Indiana, including Bloomington, Evansville, Terre Haute, Columbus, Jeffersonville, Lawrenceburg, Madison, and New Albany)	2015, overlaid by 930
813	Florida (all of Hillsborough County, including Tampa and its suburbs, MacDill Air Force Base, and Plant City; and also the inland areas of Pasco County)	1953, created by a split from 305 to give Florida more than one area code 1995, split to create 941 1998, split to create 727
814	Pennsylvania (Erie, State College, Altoona, Clearfield, Emporium, Johnsonburg, Johnstown, Meyersdale, Ridgway, Somerset, and most of northwestern and parts of central Pennsylvania)
815	Illinois (much of northern Illinois outside Chicago & its immediate surrounding suburbs. Includes Rockford and its suburbs, Belvidere, La Salle, Peru, DeKalb, Sycamore, Freeport, Dixon, Sterling, Rock Falls, Ottawa, Morris, Princeton, Mendota, Rochelle, Sandwich, Streator, Pontiac, Kankakee, and some outlying Chicago suburbs such as Harvard, McHenry, Crystal Lake, Woodstock, Plainfield, Joliet, Romeoville, Lockport, New Lenox, Frankfort, Minooka, Channahon, and Shorewood)	1957, split to create a part of 309 2007, overlaid by 779
816	Missouri (Kansas City, St Joseph, Independence, Harrisonville, and parts of west-central Missouri)	1950, split to create a part of 417 1997, split to create 660
817	Texas (Fort Worth, Arlington, Grand Prairie, Grandview, Weatherford)	1953, created from parts of 214 and 915 1957, split to create a part of 806 1997, split to created 254 and 940 2000, overlaid by 682
818	California (the San Fernando Valley portion of Los Angeles County, including Burbank, Canoga Park, Encino, Glendale, North Hollywood, Northridge, Panorama City, Reseda, San Fernando, Sylmar, Tarzana, Van Nuys, and Woodland Hills)	1984, created by a split from 213 1997, split to create 626 2009, overlaid by 747
819	Quebec (Western Québec except Montréal 514 and surrounding area 450. A large area including Abitibi-Témiscamingue, Estrie, Mauricie, Outaouais, Sherbrooke, and Trois-Rivieres)	1957, created by a split from 514 1997, split to create 867 (the portion of the area code serving the Northwest Territories and Nunavut) 2012, overlaid by 873 area code 468 is reserved as a third code for the region
820	California (Ventura, San Luis Obispo and Santa Barbara Counties)	2018, overlaid on 805
821	not in use
822	Not in use—reserved for future toll-free expansion	see also 800, 833, 844, 855, 866, 877, 880–882, 883–887, 888, and 889
823–824	not in use
825	Alberta (Calgary, Edmonton)	2016, overlaid on 403, 587, and 780 Alberta^[18] To be overlaid by 368 on May 15, 2021.
826–827	not in use
828	North Carolina (Asheville, Franklin, Hickory, Murphy, Waynesville, and parts of western North Carolina)	1998, created by a split from 704
829	Dominican Republic	2005, overlaid on 809
830	Texas (Del Rio, Kerrville, Eagle Pass, Fredericksburg, New Braunfels, and part of the Rio Grande Valley)	1997, created by a split from 210
831	California (Monterey County, including Salinas and Monterey); San Benito County (including Hollister); and Santa Cruz County (including Santa Cruz and Watsonville)	1998, created by a split from 408
832	Texas	1999, overlaid on 713 and 281 2014, overlaid by 346
833	toll-free telephone service	2017, created as an overlay of 800^[19] see also 800, 822, 844, 855, 866, 877, 880–882, 883–887, 888, and 889
834	not in use
835	assigned for numbering relief to 610 and 484 (Pennsylvania), but this has been suspended indefinitely
836–837	not in use
838	New York	2017, overlaid on 518
839	South Carolina	will overlay 803 in 2020.^[20]
840	California (southwestern San Bernardino County and a small portion of Los Angeles and Riverside Counties, including Fontana, Pomona, Chino Hills, Claremont, Chino, Ontario, Redlands)	will overlay 909 on February 23, 2021
841–842	not in use
843	South Carolina (Charleston, Florence, Hilton Head Island, Myrtle Beach, Charleston Air Force Base, and most of southeastern South Carolina)	1998, created by a split from 803 2015, overlaid by 854 mnemonic: TIDes for being along the South Carolina Coast.
844	toll-free telephone service	2013, created as an overlay of 800 see also 800, 822, 833, 855, 866, 877, 880–882, 883–887, 888, and 889
845	New York (Dutchess, Orange, Putnam, Rockland, Sullivan, and Ulster counties. Includes Poughkeepsie, Middletown, Kingston, West Point, Newburgh; the Catskills west to Margaretville)	2000, created by splitting from 914
846	not in use
847	Illinois (North and northwest suburbs of Chicago, including Lake, northern Cook, northern Kane, and extreme southeastern McHenry counties. Includes Evanston, Skokie, Niles, Park Ridge, Des Plaines, and Mount Prospect.)	1996, created by a split from 708 1998, overlaid by 224
848	New Jersey	2001, overlaid on 732
849	Dominican Republic	2009, overlaid on 809 and 829
850	northwestern Florida (Appalachicola, Pensacola, Tallahassee, Quincy, Panama City, Naval Air Station Pensacola, Eglin Air Force Base, and all of the Florida Panhandle)	1997, created by a split from 904 To be overlaid by 448 on August 22, 2020
851	not in use	set aside for Canadian use, but no date has been scheduled for this to go into effect
852–853	not in use
854	South Carolina (Charleston, Florence, Hilton Head Island, Myrtle Beach, Charleston Air Force Base, and most of southeastern South Carolina)	2015, overlaid on 843
855	toll-free telephone service	2010, created as a further expansion of 800 see also 800, 822, 833, 844, 866, 877, 880–882, 883–887, 888, and 889
856	New Jersey (Cherry Hill, Camden, Millville, Vineland, and most of southwestern New Jersey)	1999, created by a split from 609
857	Massachusetts (Boston, Cambridge, Quincy, Newton, Everett, and nearby suburbs)	2001, overlaid on 617
858	California (San Diego and suburbs)	1999, created by a split from 619 2017, re-merged with 619 as an overlay
859	Kentucky (Lexington, Richmond, Danville, Covington, Florence, and northernmost Kentucky)	2000, created by a split from 606 Mnemonic: UKY—the University of Kentucky is in 859's most-populous city, Lexington
860	Connecticut (Hartford, Bristol, Norwich; and northern and eastern Connecticut)	1995, created by a split from 203 2014, overlaid by 959
861	not in use
862	New Jersey	2001, overlaid on 973
863	Florida (Lakeland, Bartow, Sebring, Winter Haven in south-central Florida)	1999, created by a split from 941
864	South Carolina (The Upstate, including Greenville, Spartanburg, Anderson, Clemson, and most of northwestern South Carolina)	1995, created by a split from 803 Mnemonic: UNIversity—24 colleges and universities reside in this area code, including Anderson University, Bob Jones University, Clemson University, Furman University, Converse College, Wofford College, and University of South Carolina Upstate
865	Tennessee (Knoxville, Alcoa, Athens, Clinton, Crossville, Dayton, Gatlinburg, Loudon, Maryville, Newport, Oak Ridge, Oliver Springs, Pigeon Forge, Rockwood, Sweetwater, etc., in east Tennessee)	1999, created by a split from 423 Mnemonic: VOL—the University of Tennessee, whose sports teams are the "Volunteers", is in Knoxville, the most-populous city served by this code
866	toll-free telephone service	2000, created as a further expansion of 800 see also 800, 822, 833, 844, 855, 877, 880–882, 883–887, 888, and 889
867	The Canadian Territories: Yukon, Northwest Territories, and Nunavut	1997, created from parts of 403 and 819 mnemonic: TOP of the world mnemonic: 1867 was the year of Canada's confederation (formation; some long-distance calls to the 867 area code must begin 1-867)
868	Trinidad and Tobago (all)	1997, created by a split from 809 mnemonic: TNT
869	Saint Kitts and Nevis (all)	1996, created by a split from 809
870	Arkansas (Texarkana, Jonesboro, Pine Bluff; southern, eastern, and northeastern Arkansas)	1997, created by a split from 501 to be overlaid with 327 in the future
871	not in use	set aside for Canadian use, but no date has been scheduled for this to go into effect
872	Illinois	Overlay for 312 and 773, entered service on 7 November 2009^[21] mnemonic: USA
873	Quebec (Western Québec except Montréal 514 and surrounding area 450. A large area including Abitibi-Témiscamingue, Estrie, Mauricie, Outaouais, Sherbrooke, and Trois-Rivieres)	2012, overlaid on 819 area code 468 is reserved as a third code for the region
874–875	not in use
876	Jamaica	overlaid by 658 as 30 November 2018 1997, created by a split from 809
877	toll-free telephone service	1998, created as an overlay of 800 see also 822, 833, 844, 855, 866, 880–882, 883–887, 888, and 889
878	Pennsylvania	2001, overlaid on 412 and area code 724
879	Newfoundland (all)	Was to be effective on 24 November 2018; however, on 5 September 2017, its implementation was suspended when the exhaust date was recalculated for March 2024
880–882	Not in use—reserved for future toll-free expansion	Codes 880 through 882 were used (until 1 April 2004) to allow international customers to access toll-free numbers they otherwise could not by paying the international portion of the toll. 880 was paired with 800, 881 with 888, and 882 with 877.^[22] see also 800, 822, 833, 844, 855, 866, 877, 883–887, 888, and 889
883–887	Not in use—reserved for future toll-free expansion	See also 800, 822, 833, 844, 855, 866, 877, 880–882, 888, and 889
888	toll-free telephone service	1996, created as an overlay of 800 See also 800, 822, 833, 844, 855, 866, 877, 880–882, 883–887, and 889
889	Not in use—reserved for future toll-free expansion	See also 800, 822, 833, 844, 855, 866, 877, 880–882, 883–887, and 888
890–898	Not in use—reserved for potential North American Numbering Plan expansion
899	Not in use—reserved for potential toll-free expansion

900–999

Code	Territory or use	Notes
900	premium-rate telephone numbers
901	Tennessee (Memphis, Covington, Germantown, Somerville, and extreme southwestern Tennessee, mostly in Shelby County)	originally covered all of Tennessee 1954, split to create 615 2001, split to create 731
902	Nova Scotia and Prince Edward Island	originally also covered New Brunswick 1955, split to give New Brunswick its own 506 area code Newfoundland was added to the service area when it joined Canada in 1949. When 506 was created, Newfoundland was assigned to the new code along with New Brunswick. In 1962, Newfoundland received its own code, 709. 2014, overlaid by 782
903	Texas (Tyler, Sherman, Longview, Marshall, Palestine, Jacksonville, Carthage, and Northeast Texas)	prior to 1990, the area code served Tijuana, Mexico, and adjacent areas bordering the United States 1990, created by a split from 214 2003, overlaid by 430
904	Florida (Jacksonville, St. Augustine, Starke, and most of northeastern Florida)	1965, created by a split from 305 1995, split to create 352 1997, split to create 850
905	Ontario (Niagara Falls Region (including St. Catharines), Hamilton, and Greater Toronto Area except for the City of Toronto)	prior to 1991, was the area code for Mexico City 1993, created by a split from 416 2001, overlaid by 289 2013, overlaid by 365 area code 742 is reserved as a fourth code for the region
906	Michigan: Upper Peninsula (Sault Ste. Marie, Escanaba, Houghton, Iron Mountain, Marquette, Menominee, etc.)	1961, created by a split from 616
907	all of Alaska excluding the lone border town of Hyder
908	New Jersey (Alpha, Washington, Elizabeth, Warren, Plainfield, and west-central New Jersey)	1991, created by a split from 201 1997, split to create 732
909	California (southwestern San Bernardino County and a small portion of Los Angeles and Riverside Counties, including Fontana, Pomona, Chino Hills, Claremont, Chino, Ontario, Redlands)	1992, created by a split from 714 2004, split to create 951 will be overlaid by 840 on February 23, 2021
910	North Carolina (Fayetteville, Wilmington, Fort Bragg, Seymour Johnson Air Force Base, Jacksonville, Lumberton and much of southeastern North Carolina)	until 1981, used by AT&T for its TWX (Telex) service (along with 510, 610, 710, and 810) 1993, created by a split from 919 1997, split to create 336
911	Not available as an area code—used as an emergency telephone number in all geographic and non-geographic areas
912	Georgia (Savannah, Statesboro, Vidalia, Waycross, Brunswick, Douglas, and southeastern Georgia)	1954, created by a split from 404 to give Georgia two area codes 2000, split to create 229 and 478
913	Kansas (Kansas City, Kansas, Overland Park, Olathe, Lenexa, Leavenworth, Bonner Springs, De Soto, parts of eastern Kansas)	1997, split to create 785
914	New York (Westchester County)	1951, split to create 516 2000, split to create 845
915	Texas (all of El Paso County and portions of Hudspeth County)	1953, split to create a part of 817 1957, split to create a part of 806 2003, split to create 325 and 432
916	California (the Sacramento Metropolitan Area)	originally covered about one-third of California 1958, split to create 209 1997, split to create 530 2018, overlaid by 279
917	New York (New York City: Mainly cell phones)	1992, overlaid on 212 and 718 1999, parts overlaid by 646 1999, parts overlaid by 347 2011, parts overlaid by 929 2017, parts overlaid by 332
918	Oklahoma (Tulsa, Bartlesville, McAlester, Muskogee, Henryetta and northeastern Oklahoma)	1953, created by a split from 405, and to give Oklahoma two area codes, one centered on Oklahoma City and the other centered on Tulsa 2011, overlaid by 539
919	North Carolina (the Research Triangle—including Raleigh, the state capital city; Durham, Cary, and Chapel Hill—plus Goldsboro and other parts of north-central North Carolina)	1954, created by a split from 704 to give North Carolina two area codes 1998, split to create 252 2012, overlaid by 984
920	Wisconsin (Appleton, Sheboygan, Oshkosh, Green Bay, Manitowoc, Marquette, Fond du Lac, and parts of eastern Wisconsin—but not Milwaukee County)	1997, created by a split from 414 to be overlaid by 274 in the future
921	not in use
922	not in use	easily recognizable code (ERC)
923–924	not in use
925	California (inland regions of the East Bay—Livermore, Concord, Pleasant Hill, Walnut Creek, Martinez, Pleasanton and Dublin, just east of the hills that ring San Francisco Bay)	1998, created by a split from 510
926	not in use
927	Florida (Orlando, Sanford, St. Cloud, Kissimmee, and part of east-central Florida)	was reserved for cellular telephones in the 407 areas, but this has been cancelled
928	Arizona (Flagstaff, Kingman, Lake Havasu City, Page, Payson, Prescott, Tuba City, Williams, Winslow, Window Rock, Yuma, and most of northern and western Arizona, including the Grand Canyon National Park, the Lower Colorado River Valley, and the Navajo Nation)	2001, created by a split from 520
929	New York (New York City: The Bronx, Brooklyn, Queens, Staten Island, and Marble Hill)	2011, overlaid on 347, 718 and part of 917
930	Indiana (Southern Indiana, including Bloomington, Evansville, Terre Haute, Columbus, Jeffersonville, Lawrenceburg, Madison, and New Albany)	2015, overlaid on 812
931	Tennessee (Middle Tennessee, excluding the Nashville Metropolitan Area, which is in 615: Clarksville, Manchester, Columbia, Cookeville, Sparta)	1997, created by a split from 615
932	once reserved as a third area code for West Virginia, but it was replaced by a 304-932 exchange area code in Charleston
933	not in use	easily recognizable code (ERC)
934	New York (Suffolk County on Long Island)	2016, overlaid on 631
935	assigned for numbering relief to 619 (San Diego, California), but this has been suspended indefinitely
936	Texas (Nacogdoches, Lufkin, Conroe, Huntsville, Center, and Southeast Texas)	2000, created by a split from 409
937	Ohio (Dayton, Springfield, and southwestern Ohio north and east of the Cincinnati metropolitan area)	1996, created by a split from 513
938	Alabama (Huntsville, Anniston, Cullman, Decatur, Florence, Fort Payne, Gadsden, Madison, Sheffield, Tuscumbia)	2010, overlaid on 256
939	Puerto Rico	2001, overlaid on 787
940	Texas (Texas immediately north of the Dallas–Fort Worth metroplex: Denton, Wichita Falls, Decatur, Gainesville, Vernon, etc.)	1997, created by a split from 817
941	Florida (Gulf Coast immediately south of Tampa Bay: all of Manatee County, Sarasota County, and Charlotte County; includes Bradenton, Port Charlotte, Sarasota, and Punta Gorda)	1995, created by a split from 813 1999, split to create 863 2002, split to create 239
942	not in use
943	not in use
944	not in use	easily recognizable code (ERC)
945	Texas Dallas–Fort Worth metroplex	Any new numbers starting with 945 will be assigned in 2021, officials say.^[23]
946	not in use
947	Michigan (Oakland County)	2002, overlaid on 248
948	Virginia (Part of Hampton Roads and the Eastern Shore of Virginia)	not currently in use, will overlay 757 in late 2021 or early 2022
949	California: Southern Orange County (Irvine, Lake Forest, Mission Viejo, Corona del Mar, San Clemente, Laguna Beach, Dana Point, San Juan Capistrano, Rancho Santa Marguerita and parts of Newport Beach and Costa Mesa)	1998, created by a split from 714
950	Not an area code. The prefix 950 was originally used to access competing interexchange carriers: a subscriber would call 950-XXXX to reach a specific carrier, then dial the long-distance destination number. This feature group 'B' has been rendered obsolete by 1010xxx "dial-around" feature group 'D', but the exchange remains reserved in each individual area code.
951	California (western Riverside County, including Riverside, Corona, Lake Elsinore, Mira Loma, Moreno Valley, Sun City, Temecula, Winchester, Lakeview, etc.)	2004, created by a split from 909
952	Minnesota (Bloomington, Eden Prairie, Edina, Minnetonka, Chaska, and the southwest suburban Minneapolis area)	2000, created by three-way split from 612 (along with 763)
953	not in use
954	Florida (all of Broward County: Fort Lauderdale, Hollywood, Coral Springs, etc.)	1995, created by a split from 305 2002, overlaid by 754
955	not in use	easily recognizable code (ERC)
956	Texas (Laredo, Harlingen, Brownsville, McAllen, and southmost Texas)	1997, created by a split from 210
957–958	not in use
959	Connecticut	2014, overlaid on 860
960–969	Not in use—block reserved in case consecutive numbers are ever needed	966 is also an ERC
970	Colorado (Grand Junction, Aspen, Durango, Estes Park, Fort Collins, Frisco, Glenwood Springs, Greeley, Purgatory, Steamboat Springs, Telluride, Vail, Rocky Mountain National Park, Dinosaur National Monument, and most of north-central, south-central, and western Colorado)	1995, created by a split from 303
971	Oregon (Portland, Salem, Hillsboro, Beaverton, and most of northwestern Oregon)	2000, partially overlaid on 503; in 2008, Clatsop County and Tillamook County, originally excluded from the overlay, were added to it
972	Texas (Dallas metropolitan area)	1996, split from 214 1999, 214 and 972 were merged and overlaid with 469
973	New Jersey (Newark, Paterson, and most of northeastern New Jersey)	1997, created by a split from 201 overlaid by 862
974	not in use
975	assigned for numbering relief to 816 (Missouri), but suspended indefinitely
976	not in use
977	not in use	easily recognizable code (ERC)
978	Massachusetts (Fitchburg, Lowell, Lawrence, Peabody, and northeastern Massachusetts)	1997, created by a split from 508 2001, overlaid by 351
979	Texas (Wharton, Bryan, Bay City, College Station, Lake Jackson, La Grange, and southeastern Texas)	2000, created by a split from 409
980	North Carolina	2001, overlaid on 704
981–983	not in use
984	North Carolina	2012, overlaid on 919
985	Louisiana (Houma, Slidell, and southeastern Louisiana excluding New Orleans)	2001, created by a split from 504
986	Idaho	2017, overlaid on 208
987	not in use
988	Not an area code—Suicide Prevention Hotline	Easily recognizable code (ERC)
989	Michigan (Alpena, Mt. Pleasant, Bay City, Saginaw, Midland, Owosso, and part of central Michigan)	2000, created by a split from 517
990–999	Not in use—reserved for potential North American Numbering Plan expansion

Area codes by state, province or country

Future area codes are written in italics.

United States

State	Codes (italics not yet active)
Alabama (list)	205, 251, 256, 334, 659, 938
Alaska (list)	907 (Hyder only: 236, 250, 778)
Arizona (list)	480, 520, 602, 623, 928
Arkansas (list)	327, 479, 501, 870
California (list)	209, 213, 279, 310, 323, 341, 408, 415, 424, 442, 510, 530, 559, 562, 619, 626, 628, 650, 657, 661, 669, 707, 714, 747, 760, 805, 818, 820, 831, 840, 858, 909, 916, 925, 949, 951
Colorado (list)	303, 719, 720, 970
Connecticut (list)	203, 475, 860, 959
Delaware (list)	302
District of Columbia (list)	202
Florida (list)	239, 305, 321, 352, 386, 407, 448, 561, 689, 727, 754, 772, 786, 813, 850, 863, 904, 941, 954
Georgia (list)	229, 404, 470, 478, 678, 706, 762, 770, 912
Hawaii (list)	808
Idaho (list)	208, 986
Illinois (list)	217, 224, 309, 312, 331, 447, 464, 618, 630, 708, 730, 773, 779, 815, 847, 872
Indiana (list)	219, 260, 317, 463, 574, 765, 812, 930
Iowa (list)	319, 515, 563, 641, 712
Kansas (list)	316, 620, 785, 913
Kentucky (list)	270, 364, 502, 606, 859
Louisiana (list)	225, 318, 337, 504, 985
Maine (list)	207
Maryland (list)	227, 240, 301, 410, 443, 667
Massachusetts (list)	339, 351, 413, 508, 617, 774, 781, 857, 978
Michigan (list)	231, 248, 269, 313, 517, 586, 616, 734, 810, 906, 947, 989
Minnesota (list)	218, 320, 507, 612, 651, 763, 952
Mississippi (list)	228, 601, 662, 769
Missouri (list)	314, 417, 573, 636, 660, 816
Montana (list)	406
Nebraska (list)	308, 402, 531
Nevada (list)	702, 725, 775
New Hampshire (list)	603
New Jersey (list)	201, 551, 609, 640, 732, 848, 856, 862, 908, 973
New Mexico (list)	505, 575
New York (list)	212, 315, 332, 347, 516, 518, 585, 607, 631, 646, 680, 716, 718, 838, 845, 914, 917, 929, 934
North Carolina (list)	252, 336, 704, 743, 828, 910, 919, 980, 984
North Dakota (list)	701
Ohio (list)	216, 220, 234, 326, 330, 380, 419, 440, 513, 567, 614, 740, 937
Oklahoma (list)	405, 539, 572, 580, 918
Oregon (list)	458, 503, 541, 971
Pennsylvania (list)	215, 223, 267, 272, 412, 445, 484, 570, 610, 717, 724, 814, 878
Rhode Island (list)	401
South Carolina (list)	803, 839, 843, 854, 864
South Dakota (list)	605
Tennessee (list)	423, 615, 629, 731, 865, 901, 931
Texas (list)	210, 214, 254, 281, 325, 346, 361, 409, 430, 432, 469, 512, 682, 713, 726, 737, 806, 817, 830, 832, 903, 915, 936, 940, 945, 956, 972, 979
Utah (list)	385, 435, 801
Vermont (list)	802
Virginia (list)	276, 434, 540, 571, 703, 757, 804, 948
Washington (list)	206, 253, 360, 425, 509, 564
West Virginia (list)	304, 681
Wisconsin (list)	262, 274, 414, 534, 608, 715, 920
Wyoming (list)	307

Canada

Province or territory	Codes (italics not yet active)
Alberta	368, 403, 587, 780, 825, (867*)
British Columbia	236, 250, 604, 672, 778, (867, 907)
Manitoba	204, 431, 584
New Brunswick	428, 506
Newfoundland and Labrador	709, 879
Northwest Territories	867
Nova Scotia	782, 902
Nunavut	867
Ontario	226, 249, 289, 343, 365, 382, 387, 416, 437, 519, 548, 613, 647, 683, 705, 742, 753, 807, 905
Prince Edward Island	782, 902
Quebec	263, 354, 367, 418, 438, 450, 468, 514, 579, 581, 819, 873
Saskatchewan	306, 474, 639
Yukon	867

* Very small localities adjacent to the 60th parallel are served by exchanges within the 867 area code. Also, a customs station in B.C. is served by an Alaska exchange; and, conversely, Hyder, Alaska phone numbers are served by B.C.'s area codes (save for 604) rather than by Alaska area code 907.

Caribbean and Atlantic islands

Nation or territory	Codes (italics not yet active)
Anguilla	264
Antigua and Barbuda	268
The Bahamas	242
Barbados	246
Bermuda	441
British Virgin Islands	284
Cayman Islands	345
Dominica	767
Dominican Republic	809, 829, 849
Grenada	473
Jamaica	658, 876
Montserrat	664
Puerto Rico	787, 939
Saint Kitts and Nevis	869
Saint Lucia	758
Saint Vincent and the Grenadines	784
Sint Maarten	721
Trinidad and Tobago	868
Turks and Caicos Islands	649
U.S. Virgin Islands	340

U.S. Pacific territories

Territory	Codes
American Samoa	684
Guam	671
Northern Mariana Islands	670
Midway Atoll, Wake Island	808

Non-geographic area codes

Use	Codes (italics not yet active)
Canada special services	600, 622, 633, 644, 655, 677, 688
Interexchange carrier-specific services	700
Personal communications services	500, 521, 522, 523, 524, 525, 526, 527, 528, 529, 532, 533, 535, 538, 542, 543, 544, 545, 546, 547, 549, 550, 552, 553, 554, 556, 566, 558, 569, 577, 578, 588, 589
Premium call services	900
Toll-free	800, 822, 833, 844, 855, 866, 877, 880, 881, 882, 883, 884, 885, 886, 887, 888, 889
US government	710

Summary table

Table of NANP area codes^[24]
Legend
200	201	202	203	204	205	206	207	208	209	210	211	212	213	214	215	216	217	218	219	220	221	222	223	224
225	226	227	228	229	230	231	232	233	234	235	236	237	238	239	240	241	242	243	244	245	246	247	248	249
250	251	252	253	254	255	256	257	258	259	260	261	262	263	264	265	266	267	268	269	270	271	272	273	274
275	276	277	278	279	280	281	282	283	284	285	286	287	288	289	290	291	292	293	294	295	296	297	298	299
300	301	302	303	304	305	306	307	308	309	310	311	312	313	314	315	316	317	318	319	320	321	322	323	324
325	326	327	328	329	330	331	332	333	334	335	336	337	338	339	340	341	342	343	344	345	346	347	348	349
350	351	352	353	354	355	356	357	358	359	360	361	362	363	364	365	366	367	368	369	370	371	372	373	374
375	376	377	378	379	380	381	382	383	384	385	386	387	388	389	390	391	392	393	394	395	396	397	398	399
400	401	402	403	404	405	406	407	408	409	410	411	412	413	414	415	416	417	418	419	420	421	422	423	424
425	426	427	428	429	430	431	432	433	434	435	436	437	438	439	440	441	442	443	444	445	446	447	448	449
450	451	452	453	454	455	456	457	458	459	460	461	462	463	464	465	466	467	468	469	470	471	472	473	474
475	476	477	478	479	480	481	482	483	484	485	486	487	488	489	490	491	492	493	494	495	496	497	498	499
500	501	502	503	504	505	506	507	508	509	510	511	512	513	514	515	516	517	518	519	520	521	522	523	524
525	526	527	528	529	530	531	532	533	534	535	536	537	538	539	540	541	542	543	544	545	546	547	548	549
550	551	552	553	554	555	556	557	558	559	560	561	562	563	564	565	566	567	568	569	570	571	572	573	574
575	576	577	578	579	580	581	582	583	584	585	586	587	588	589	590	591	592	593	594	595	596	597	598	599
600	601	602	603	604	605	606	607	608	609	610	611	612	613	614	615	616	617	618	619	620	621	622	623	624
625	626	627	628	629	630	631	632	633	634	635	636	637	638	639	640	641	642	643	644	645	646	647	648	649
650	651	652	653	654	655	656	657	658	659	660	661	662	663	664	665	666	667	668	669	670	671	672	673	674
675	676	677	678	679	680	681	682	683	684	685	686	687	688	689	690	691	692	693	694	695	696	697	698	699
700	701	702	703	704	705	706	707	708	709	710	711	712	713	714	715	716	717	718	719	720	721	722	723	724
725	726	727	728	729	730	731	732	733	734	735	736	737	738	739	740	741	742	743	744	745	746	747	748	749
750	751	752	753	754	755	756	757	758	759	760	761	762	763	764	765	766	767	768	769	770	771	772	773	774
775	776	777	778	779	780	781	782	783	784	785	786	787	788	789	790	791	792	793	794	795	796	797	798	799
800	801	802	803	804	805	806	807	808	809	810	811	812	813	814	815	816	817	818	819	820	821	822	823	824
825	826	827	828	829	830	831	832	833	834	835	836	837	838	839	840	841	842	843	844	845	846	847	848	849
850	851	852	853	854	855	856	857	858	859	860	861	862	863	864	865	866	867	868	869	870	871	872	873	874
875	876	877	878	879	880	881	882	883	884	885	886	887	888	889	890	891	892	893	894	895	896	897	898	899
900	901	902	903	904	905	906	907	908	909	910	911	912	913	914	915	916	917	918	919	920	921	922	923	924
925	926	927	928	929	930	931	932	933	934	935	936	937	938	939	940	941	942	943	944	945	946	947	948	949
950	951	952	953	954	955	956	957	958	959	960	961	962	963	964	965	966	967	968	969	970	971	972	973	974
975	976	977	978	979	980	981	982	983	984	985	986	987	988	989	990	991	992	993	994	995	996	997	998	999
	Assigned to the United States
	Assigned to Canada
	Assigned to Caribbean, Atlantic and Pacific islands
	Available for geographic assignment
	Assigned to non-geographic use (personal communications, special, carrier-specific, government, toll-free, premium)
	Reserved for non-geographic assignment (personal communications, special, toll-free, easily recognizable codes)
	Not assignable (N11 codes, continuous blocks, directory assistance, carrier access)
	Reserved for geographic expansion
	Reserved for toll-free expansion

Assignment activities by year

Year	NPA codes assigned, or other activity as noted
1947	201, 202, 203, 204, 205, 206, 207, 208, 212, 213, 214, 215, 216, 217, 218, 301, 302, 303, 304, 305, 306, 307, 312, 313, 314, 315, 316, 317, 319, 401, 402, 403, 404, 405, 406, 412, 413, 414, 415, 416, 418, 419, 501, 502, 503, 504, 505, 512, 513, 514, 515, 517, 518, 601, 602, 603, 604, 605, 612, 613, 614, 616, 617, 618, 701, 702, 703, 704, 712, 713, 715, 716, 717, 801, 802, 803, 812, 814, 815, 816, 901, 902, 913, 914, 915, 916
1948	219
1950	417
1951	516, 714
1953	519, 813, 817, 918
1954	308, 507, 606, 607, 615, 912, 919
1955	506, 608
1957	209, 309, 318, 509, 705, 805, 806, 808, 819, 907
1958	609, 809
1959	408, 707
1961	906
1962	709, 807
1963	903 (Tijuana-Mexicali; Mexico zone 6)
1965	904
1966	800
1970	706: pseudo-NPA code for Northwest Mexico (zone 6) 905: pseudo-NPA code for Mexico City (zone 5)
1971	900
1973	804
1980	903 withdrawn and replaced by expanding 706 in Northwest Mexico
1982	619
1983	409, 700, 710
1984	718, 818
1988	407, 508, 719
1989	708
1990	903
1991	310, 410, 510, 908 706 & 905 withdrawn from Mexico
1992	210, 600, 706, 909, 917
1993	456, 810, 905, 910
1994	610
1995	334, 352, 360, 423, 441, 500, 520, 540, 541, 770, 860, 864, 941, 954, 970
1996	242, 246, 250, 268, 281, 320, 345, 561, 573, 630, 664, 757, 758, 773, 787, 847, 869, 888, 937, 972
1997	228, 240, 248, 253, 254, 264, 267, 284, 330, 336, 340, 425, 435, 440, 443, 473, 530, 562, 580, 626, 649, 650, 660, 670, 671, 732, 734, 740, 760, 765, 767, 781, 785, 830, 850, 867, 868, 870, 876, 920, 931, 940, 956, 973, 978
1998	225, 252, 256, 323, 450, 559, 570, 651, 678, 720, 724, 727, 775, 784, 786, 828, 831, 843, 877, 925, 949
1999	231, 262, 270, 321, 337, 347, 361, 469, 480, 484, 623, 631, 636, 646, 661, 662, 780, 832, 856, 858, 863, 865
2000	229, 234, 478, 571, 641, 682, 763, 845, 859, 866, 936, 952, 971, 979, 989
2001	251, 276, 289, 339, 351, 386, 434, 551, 563, 586, 620, 647, 731, 754, 774, 778, 848, 857, 862, 878, 928, 939, 980, 985
2002	224, 260, 269, 479, 567, 574, 585, 772, 947
2003	239, 325, 430, 432
2004	684, 951
2005	769, 829
2006	226, 424, 438
2007	331, 575, 762, 779
2008	581, 587, 657
2009	385, 442, 475, 533, 681, 747, 849, 872
2010	343, 458, 470, 534, 544, 579, 938
2011	249, 531, 539, 721, 855, 929
2012	431, 566, 667, 669, 873, 984
2013	236, 272, 365, 437, 639, 737, 844
2014	346, 364, 577, 725, 782, 930, 959
2015	220, 588, 622, 628, 629, 854
2016	380, 463, 522, 548, 743, 825, 934
2017	223, 332, 521, 564, 680, 726, 833, 838, 986
2018	279, 367, 445, 523, 640, 820
2019	341, 524, 658, 659, 672, 689
2020	326, 428, 572, 839
2021	368, 447, 448, 474, 840

References

^ AT&T (1955) Notes on Distance Dialing
^ "Telecom Decision CRTC 2011-451". Canadian Radio-television and Telecommunications Commission. 28 July 2011. Retrieved 29 July 2011.
^ ^a ^b ^c NECA Tariff 4 filing, 9 May 2012.
^ ^a ^b "639 to be Sask.'s 2nd area code". CBC News. 14 June 2011.
^ "CRTC approves new 474 area code for Saskatchewan | CTV News".
^ AT&T, Telegraph to Telephone - A History from Early Invention to 1950s (movie), YouTube, retrieved 17 July 2016.
^ Craig Hlavaty (10 May 2013). "Houston gets new area code to keep from running out of phone numbers". Houston Chronicle. Retrieved 12 May 2013.
^ "Telecom Decision CRTC 2010-213". Canadian Radio-television and Telecommunications Commission. 13 April 2010. Retrieved 23 August 2010.
^ "New 367 area code coming to eastern Quebec in November". Montreal Gazette. 23 May 2018. Retrieved 24 May 2018.
^ "New area codes in Canada". Telecommunications Alliance. Retrieved 24 May 2018.
^ "CRTC approves new 474 area code for Saskatchewan | CTV News".
^ Deak, J. N. "North American Numbering Plan Planning Letter PL-NANP-081" (PDF). NANPA: North American Numbering Plan Administration. Bellcore. Retrieved 9 July 2014.
^ "CRTC approves new 474 area code for Saskatchewan | CTV News".
^ https://www.nationalnanpa.com/pdf/PL-523.pdf
^ "B.C. is getting a new area code next year". CBC News. 14 February 2018. Retrieved 19 February 2018.
^ "PL-423: Introduction of NPA 721 (Sint Maarten)" (PDF). North American Numbering Plan Administration. 2011-07-27. Retrieved 2011-09-01.
^ "?". 2010-04-13.
^ "New area code 825 in Alberta". Telus. TELUS Communications Company. Retrieved 27 April 2016.
^ "Implementation of the 833 NPA for Toll-Free Services" (PDF). NANPA. 26 April 2017.
^ https://www.nationalnanpa.com/pdf/PL-520.pdf
^ Rosenthal, Phil (2009-08-10). "Chicago's newest area code: 872". Chicago Tribune.
^ "Planning Letter 331: Recovery of NPA Codes 880, 881, 882 (Paid Toll-Free Service) Scheduled for 1 April 2004" (PDF). North American Numbering Plan Administration. 2003-06-02. Retrieved 2008-08-28.
^ https://www.wfaa.com/article/news/local/new-area-code-approved-for-dallas-area-to-accommodate-population-growth/287-aad4e65c-9650-4ed1-8840-8399f12dedcf
^ NPA reports, North American Numbering Plan Administration, 22 June 2019.

* Category:Canada communications-related lists Category:Communication-related lists Category:North American Numbering Plan Category:United States communications-related lists

[1] AT&T (1955) Notes on Distance Dialing

[2] "Telecom Decision CRTC 2011-451". Canadian Radio-television and Telecommunications Commission. 28 July 2011. Retrieved 29 July 2011.

[neca4-3] NECA Tariff 4 filing, 9 May 2012.

[autogenerated1-4] "639 to be Sask.'s 2nd area code". CBC News. 14 June 2011.

[5] "CRTC approves new 474 area code for Saskatchewan | CTV News".

[6] AT&T, Telegraph to Telephone - A History from Early Invention to 1950s (movie), YouTube, retrieved 17 July 2016.

[7] Craig Hlavaty (10 May 2013). "Houston gets new area code to keep from running out of phone numbers". Houston Chronicle. Retrieved 12 May 2013.

[8] "Telecom Decision CRTC 2010-213". Canadian Radio-television and Telecommunications Commission. 13 April 2010. Retrieved 23 August 2010.

[9] "New 367 area code coming to eastern Quebec in November". Montreal Gazette. 23 May 2018. Retrieved 24 May 2018.

[10] "New area codes in Canada". Telecommunications Alliance. Retrieved 24 May 2018.

[11] "CRTC approves new 474 area code for Saskatchewan | CTV News".

[North_American_Numbering_Plan_Planning_Letter_PL-NANP-081-12] Deak, J. N. "North American Numbering Plan Planning Letter PL-NANP-081" (PDF). NANPA: North American Numbering Plan Administration. Bellcore. Retrieved 9 July 2014.

[13] "CRTC approves new 474 area code for Saskatchewan | CTV News".

[14] ttps://www.nationalnanpa.com/pdf/PL-523.pdf

[15] "B.C. is getting a new area code next year". CBC News. 14 February 2018. Retrieved 19 February 2018.

[16] "PL-423: Introduction of NPA 721 (Sint Maarten)" (PDF). North American Numbering Plan Administration. 2011-07-27. Retrieved 2011-09-01.

[17] "?". 2010-04-13.

[Area_Code_825-18] "New area code 825 in Alberta". Telus. TELUS Communications Company. Retrieved 27 April 2016.

[19] "Implementation of the 833 NPA for Toll-Free Services" (PDF). NANPA. 26 April 2017.

[20] ttps://www.nationalnanpa.com/pdf/PL-520.pdf

[21] Rosenthal, Phil (2009-08-10). "Chicago's newest area code: 872". Chicago Tribune.

[22] "Planning Letter 331: Recovery of NPA Codes 880, 881, 882 (Paid Toll-Free Service) Scheduled for 1 April 2004" (PDF). North American Numbering Plan Administration. 2003-06-02. Retrieved 2008-08-28.

[23] ttps://www.wfaa.com/article/news/local/new-area-code-approved-for-dallas-area-to-accommodate-population-growth/287-aad4e65c-9650-4ed1-8840-8399f12dedcf

[24] NPA reports, North American Numbering Plan Administration, 22 June 2019.

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[3]

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[9]

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[14]

[15]

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[24]

v t e Lists of area codes in the North American Numbering Plan
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Other	Canada Caribbean
Former	Belize Costa Rica Cuba El Salvador Guatemala Haiti Honduras Mexico Nicaragua Panama

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