Category:Telephone numbers

C

• Telephone numbers by country (20 C, 290 P)

E

• Emergency telephone numbers (1 C, 34 P)

N

• North American Numbering Plan (6 C, 22 P)

T

• Telephone directory publishing companies (1 C, 4 P)
• Three-digit telephone numbers (29 P)

Σ

• Area code stubs (55 P)
• Telephone number stubs (1 C, 117 P)

• Telephone number

*

• Abbreviated dialing
• List of country calling codes
• Three-digit phone numbers

0–9

• 2 B R 0 2 B
• +7

A

• All-number calling
• Area code split
• Area codes in the Caribbean
• Arogyavani
• Automatic number announcement circuit

B

• Blue pages

C

• Choke exchange
• Crisis hotline

D

• Dial plan
• Dial-a-joke
• Dialed Number Identification Service
• Distributed Universal Number Discovery

E

• E.123
• E.161
• E.164
• Electronic Yellow Pages
• European Telephony Numbering Space

F

• Fictitious telephone number
• Flash cut

G

• Geographic number

H

• Harmonised service of social value

I

• Index of telephone-related articles
• List of international call prefixes
• International gateway
• International premium rate service
• INum Initiative

L

• LERG Routing Guide
• Linked numbering scheme
• Local number portability
• Local telephone area codes in France
• Location routing number
• Long number
• Loop around

M

• Milliwatt test
• Mobile dial code
• List of mobile telephone prefixes by country
• MSISDN

N

• National conventions for writing telephone numbers
• Neustar
• North American Numbering Council
• North American Numbering Plan
• Telephone number pooling
• Number Portability Administration Center

P

• Permissive dialing
• Personal mobility
• Personal numbering
• Phoneword
• Plant test number
• Area code 900
• Premium-rate telephone number

R

• Random digit dialing
• RespOrg
• Reverse telephone directory
• Ringback number

S

• Shared-cost service
• Speaking clock
• Speed dial
• Subscriber trunk dialling

T

• Teledotcom
• Telephone directory
• Telephone exchange names
• Telephone keypad
• Telephone number mapping
• Telephone numbering plan
• Telephone numbers in Africa
• Telephone numbers in Asia
• Telephone numbers in Europe
• Telephone numbers in Oceania
• Telephone numbers in the Americas
• Telephone prefix
• Toll-free telephone number
• Trunk prefix

U

• Universal International Shared Cost Number
• Universal Personal Telecommunications
• Unlisted number

V

• Vanity number
• Vector directory number
• Virtual number

Z

• Zenith number