Jump to content

Mobile number portability

From Wikipedia, the free encyclopedia
This article is about telephone number portability on mobile phones. For telephone number portability on landlines, see local number portability.

Mobile number portability (MNP) enables mobile phone users to retain a mobile telephone number when changing the mobile network operator.

Overview

[edit]

Mobile number portability (MNP) allows people to keep their phone numbers when switching to a new mobile network. Moreover, it has been implemented in various ways across the globe.

In most places, like Europe and many other countries, the process is "recipient-led." This means that when you want to switch to a new network, you contact the new network (the recipient). The new network then asks your current network (the donor) to transfer your number. This method is generally seen as straightforward for customers because they only need to interact with the new network. However, the UK and India have a different system known as "donor-led" porting. In these countries, you first need to contact your current network (the donor) to get a special code a Porting Authorization Code (PAC) in the UK or a Unique Porting Code (UPC) in India—which is to be submitted to the recipient network. The recipient continues the porting process by informing the recipient of that porting code. The method has been criticized by some industry analysts as being inefficient, though it prevents MNP scams. It has also been observed that it may act as customer deterrent as well as allowing the donor an opportunity to win back the customers. This might lead to distortion of competition, especially in the markets with new entrants that are yet to achieve scalability in operations. From 1 July 2019 as a result of new rules from Ofcom, In the UK a customer can request a PAC by simply texting "PAC" to 65075,[1] making the process easier without needing to speak directly to the current provider.

Technical details

[edit]

A key technical aspect of Mobile Number Portability (MNP) involves the routing of calls or mobile messages (SMS, MMS) to a number once it has been ported. Various call routing implementations exist globally, but the International and European best practice employs a central database (CDB) of ported numbers. Network operators replicate the CDB and query it to determine the network to which a call should be directed. According to RFC 3482, this method, known as All Call Query (ACQ), is both efficient and scalable. The majority of established and emerging MNP systems worldwide rely on this ACQ/CDB method for call routing.

The United Kingdom is one of the few countries that does not use the ACQ/CDB approach. Instead, after a number is ported, calls are routed through the donor network, a method known as "indirect routing." This approach is inefficient as it wastes transmission and switching capacity. Additionally, indirect routing poses risks: if the donor network experiences a fault or ceases operations, customers with ported numbers will lose incoming calls.[2] The UK telecoms regulator Ofcom completed its extended review of the UK MNP process on 29 November 2007, and mandated that ACQ/CDB be implemented for mobile-to-mobile ported calls by 1 September 2009.[3] However, in 2010, Ofcom reversed this decision following objections from major UK telecom operators regarding the cost analysis of the mandate and a successful appeal by Vodafone in 2008.[4][5]

Prior to March 2008, the minimum porting time in the UK was 5 working days, compared to 3.5 days in Pakistan, 2 hours in the United States, as quickly as 20 minutes in the Republic of Ireland, 3 minutes in Australia and a few seconds in New Zealand. On 17 July 2007, Ofcom concluded a review mandating a reduction of porting time to 2 working days effective 1 April 2008. Following consultations, Ofcom also mandated that near-instant (no more than 2 hours) recipient-led porting be implemented by 1 September 2009. However, Vodafone UK appealed this decision to the Competition Appeal Tribunal (CAT), which ruled in favor of Vodafone on 18 September 2008, returning the matter to Ofcom for reconsideration. On 8 July 2010, Ofcom issued a final statement retaining the donor-led process, mandating a two-hour PAC release time, and reducing the porting time from two working days to one working day.[6]

In decentralized MNP models, a Flexible Number Register (FNR) may be used to manage a database of ported-out and ported-in numbers for call routing.

Number lookup services

[edit]

Service providers and carriers who route messages and voice calls to MNP-enabled countries might use home location register (HLR) query services to find out the correct network of a mobile phone number. A number of such services exist, which query the operator's HLR over the SS7 signaling network in order to determine the current network of a specified mobile phone number prior to attempted routing of messaging or voice traffic. These number lookup services can access the centralized database where the details related to each phone number subscribe is present who has been authorized to use the GSM network.

Impact of MNP on mobile carriers and customers

[edit]
MNP map by implementation time

Mobile Number Portability (MNP) is crucial for telecom markets as it eliminates a significant barrier to switching, particularly for users who place high value on their numbers, such as business users. By reducing the obstacles to switching, MNP benefits challenger carriers in competition with dominant incumbents. Typically, the implementation of MNP in a country results in an increase in customer churn.

The experience of portability can differ significantly from country to country. For instance, in Portugal, any call to a ported mobile number is accompanied by an announcement indicating that the number has been ported.[7] The uptake of porting varies considerably across markets. According to a report by the Irish regulator Comreg, over 3 million mobile numbers were ported in Ireland between 2004 and 2013.[8] In contrast, Portugal, which has a much larger population of mobile users, saw just over one million numbers ported during a similar timeframe.

The Americas

[edit]
Country Implementation date
yyyy.mm.dd 		Time to port
days 		Price Short notes References
 Argentina 2010.08.17 1–5 days ARS 5[9] The plan started in August 2010. Number Portability Clearinghouse service is handled by iconectiv. [10]
 Bolivia 2018.10.01 1 Free The process take more working days on postpaid services [11][12]
 Brazil 2008.09.01 0–3 Free The plan started in March 2007 [13]
 Canada 2007.03.14 0 Free MNP procedure takes 10–20 minutes. [14]
 Colombia 2011.07.29 0 Free On 1 July 2020, the time taken for the MNP procedure to take effect was reduced from 3 days to under 24 hours, the customer might also pick a specific date for the MNP procedure be carried out. [15][16][17]
 Chile 2012.01.16 1 Free The process takes place overnight. Number Portability Clearinghouse service is handled by iconectiv. [18]
 Dominican Republic 2009.09.30 3–10 Free [19]
 Ecuador 2009.10.12 4 Free ASCP handled by Systor, Telconet and JR Electric Supply
 El Salvador 2015.08.24 0 Free The NP Central data base (NPCDB) "NUMLEX" was developed and installed by Mediafon Datapro, administered by Mediafon Datapro and "imCard S.A. de C.V." . MNP procedure takes up to 8 hours, FNP – 3 days. [20][21]
 Honduras 2014.04.30 0 Free MNP procedure takes 1 hour.
 Mexico 2008.07.05

2019.09.01

In 2019 September Mediafon de Mexico successfully replaced old solution by modern Numlex NPCDB platform.

Previously the service was handled by iconectiv and Neoris.

[22]
 Paraguay 2012.11.30 Up to 8 working days Free MNP can take up to 8 working days but usually takes no longer than 1–2 working days. Switching occurs between 1 am and 5 am.
 Peru 2010.01.01 7–9 Free sim card of the new mobile company that will cost around 15 PEN.
 United States 2003.11.24 0 Free iconectiv manages the Number Portability Administration Center (NPAC), the largest number portability system in the world. Consisting of seven regional systems, the NPAC facilitates number porting across all Service Providers in the United States.
 Uruguay 2021.01.12 1–5 days Free Cleartech manages the Portability Database Administration (ABD - Administrador de la Base de Datos)

Central Asia

[edit]
Country Implementation date
yyyy.mm.dd 		Time to port
days 		Price Short notes References
 Kazakhstan 2016.01.01 5 Free The NP Central data base (NPCDB) "NUMLEX" was developed and installed by Mediafon Datapro, administrated by national NPCDB Administrator.

Asia Pacific

[edit]
Country Implementation date
yyyy.mm.dd 		Time to port
days 		Price Short notes References
 Australia 2001.09.25 0 Free Previously prefixes
04x1, 04x2, 04x3 referred to Optus
04x4, 04x5 and 04x6 referred to Vodafone
043x, referred to Vodafone Hutchison Australia formally known as Hutchison 3G Australia.
04x7, 04x8, 04x9 and 0410x referred to Telstra
Some carriers may charge a fee for porting out. MNP takes around 10 to 20 minutes 		[23]
 Bangladesh 2018.10.01 7 $0.43

50 BDT Fee and 200 BDT SIM replacement Tax and VAT. Total amount is 256 BDT.

Number portability is available nationwide, "Infozillion BD-Teletech Consortium" provided the MNP. customer should have completed a period of 90 days (from the date of activation of the mobile connection) with the current operator, to be eligible for porting to another operator. Similarly, after porting to a new provider the number would be locked in for 90 days.

GrameenPhone, Robi, Airtel-bd, Banglalink all operator can port own Number.

The duration for the process is 7 days and the time a number is deactivated for portability is about 2 hours.

[24]
 China (mainland)
  • Phase I: 2010.11 (in Tianjin and Hainan)
  • Phase II: 2018.12 (Phase I and Jiangxi, Hubei and Yunnan provinces)
  • Phase III: 2019.11.10 (all provinces, officially on 2019.12.01)
 <1 (1~2 hours as in Phase II) Free (but as per the 4th requirement on right, sometimes cancellation of contract services may take some fees) No MVNO, satellite and IoT numbers are accepted due to technical challenges. No changes on home territory when doing MNP. MNP requests may only accepted if and when the phone numbers:
  1. Are identified with real name
  2. Are not in reported-the-loss or halted mode
  3. Have not owed phone bills
  4. Have no limits on contract services
  5. Have linked with the previous carrier for 120 days
 [25][26][27][28]
 Hong Kong 1999.03.01 2 Free Service handled by Office of the Communications Authority (OFCA). In the network, you may be charged unexpectedly for a call to a mobile that has been ported form a different network. [29]
 India 2011.01.20 3[30] ₹6.46 (if requested by operator) Number portability is available nationwide,[31] provided the customer should have completed a period of 90 days (from the date of activation of the mobile connection) with the current operator, to be eligible for porting to another operator. Similarly, after porting to a new provider the number would be locked in for 90 days. Number Portability Clearinghouse service is handled by iconectiv.

The duration for the process is 3 days and the time a number is deactivated for portability is about 2 hours.

[32]

[33] [34]

 Japan 2006.10.24 1 JPY 3000 [35] [36]
 Malaysia 2008.10.01 1 Free 1 day is a minimum time necessary for porting. Number Portability Clearinghouse service is handled by iconectiv. [37][38][39][40]
 Maldives 2016.03.10 2 MVR 200 Number portability is allowed within a circle. The customer should have completed a period of 90 days (from the date of activation of the mobile connection) with the current operator and any outstanding bills should be cleared, to be eligible for porting to another operator.

Although the duration for the process is 2 days for total process but the time a number is deactivated for portability is 2 hours only.

[41]

[42] [43]

 New Zealand 2007.04.01 [44]
 Pakistan 2007.03.23 4 Free Customers can port between prepaid and postpaid options. On porting IN, the recipient company provides, free credit and airtime. The service is handled by Pakistan MNP Database (Guarantee) Limited,[45] the joint venture of all the cellular companies of Pakistan. Number Portability Clearinghouse service is handled by iconectiv.
 Philippines 2021.09.30 2 Free [46]
 Singapore 2008.06.13 1 Free Customers are not able to port between prepaid and postpaid options. Vendor for database installation is Syniverse Technologies [47]
 South Korea 2004.07.12 [48][44]
 Taiwan 2005.10.13 1 TWD 112 [49][50]
 Thailand 2010.12.15 2 Free Number Portability Clearinghouse services were previously handled by iconectiv. 2 days can be just working days. [51]
 Vietnam 2018.11.16 (postpaid)

2019.01.01 (prepaid)

2 60,000 VND (postpaid)

50,000 VND (prepaid)

Number Portability Clearinghouse service is handled by iconectiv. [52]

Europe

[edit]
Country Implementation date
yyyy.mm.dd 		Time to port
days 		Price Short notes References
 Albania 2010.12.22 TBA TBA Agreement signed on 2010-12-22 between AKEP (Authority of Electronic and Postal Communications) and the service handling company "INFOSOFT SYSTEMS sh.a.". Service not implemented yet. [53]
 Armenia 2014.04.01
 Austria 2004.10.16 3 EUR 10
 Azerbaijan 2013.08.01 3 Free From 1 January 2013 NPCDB in Azerbaijan is administrated by Mediafon Datapro, the company of Mediafon group, which has won international rebid for NPCDB administration in Azerbaijan in 2013.

Mediafon Datapro successfully replaced old solution by modern Numlex NPCDB platform.

[54][55]
 Belarus 2012.02.01 1 Free
 Belgium 2002.10.01 2 Free The central solution CRDC has been re-implemented several times. Originally, it was implemented by iconectiv US, then by Cap Gemini Sweden and Belgium, and the third time by Porthus Belgium. Access to DB: setup fee : €11 000, annual fee: €3000. Before, the prefixes 047x was for Proximus phones, 048x for Base and 049x for Orange
 Bosnia and Herzegovina 2013.01.01 3 Free [56]
 Bulgaria 2008.04.11 2 EUR 2.56
 Croatia 2006.10.01 5 5 days is maximum possible period necessary for porting a number. Service handled by HAKOM.
 Cyprus 2004.07.?? 2 Free[57]
 Czechia 2006.01.15 4 Before 2013-09-01 it was 30 days to transfer, now just 4 days [58]
 Denmark 2001.07.?? 1 DKK 0–29 The central solutions is called OCH – Operators Clearing House. Before 2009 it was 30–60 days to transfer number, now just 1 day [59]
 Estonia 2005.01.01 7
 Finland 2003.07.25 5 Free Handled by the company Numpac [60]
 France 2003.06.30 3 Free Heavily improved since November 2011 with a 3-days maximum lead time (was taking 2 months in most cases before 2007, then 10 days) [61]
 Georgia 2011.01.01 Free From 1 January 2017 NPCDB in Georgia is administrated by Mediafon Datapro, the company of Mediafon group, which has won international rebid for NPCDB administration in Georgia in 2016. Mediafon Datapro successfully replaced old solution by modern Numlex NPCDB platform. [44]
 Germany 2002.11.01 1 Free
 Greece 2003.09.?? 3 Free Service is handled by iconectiv.
 Hungary 2004.05.01 8 Free
 Iceland 2004.10.01 10 Free 10 days is maximum possible period.
 Ireland 2003.07.25 0 Free Full mobile number portability in Ireland is a very simple and rapid process, driven by the customer. The request is made to the new operator, then automatically confirmed by SMS or a voice call using a code. It normally completes within a few minutes. Many operators can process requests automatically online through their websites. Requests can occasionally take longer, but usually no more 24 hours. Volumes of ported mobile numbers are reported in the Comreg quarterly report[8] Before 2003, partial mobile number portability was available. Customers retained the last 7-digits of their mobile number, but changed operator prefix. Callers to the old prefix would hear an automatic announcement advising them of the new number. This service was introduced in 1997 and replaced by full portability in 2003. Where an Irish number is ported, mobile callers will hear a 'chirp' tone if they are calling a number that is not on its original network. This alerts them that call charges other networks may apply.

Service handled by PortingXS via the Inports Number Portability System.

 Italy 2002.04.01 1 Free (1 to €1.6 if the subscriber wants to transfer their prepaid credit to the new carrier) The maximum time for the procedure is 24 working hours. In case of delay up to 3 working days no refund is given, if the delay is longer than 3 days user receive a refund of €2.5 for each day of delay, start counting from day 1.
 Latvia 2007.??.?? 10 Free
 Lithuania 2004.01.01 28 From 2016.01.01 (after rebid in 2015) NPCDB administrator VsI "Numerio perkelimas" manages NPCDB solution NUMLEX developed and installed by Mediafon.

Time to port – 1 day

 Luxembourg 2005.02.01 1 Managed by the G.I.E Telcom E.I.G. operator group and developed, installed and operated by Systor Trondheim AS.
 Malta 2005.07.31 0 4 hours is a period necessary to port a number.
 Moldova 2013.07.01 5–30 Free Service handled by Mediafon Datapro. The NP Central data base (NPCDB) "NUMLEX" was developed, installed and supported by Mediafon Datapro, administrated by national NPCDB Administrator "NP Base" [62]
 Netherlands 1999.04.?? 3 [63]
 North Macedonia 2008.09.01 The reference database was developed, installed and is operated by Seavus Group.
 Norway 2001.04.01 5 NOK 0 – 200 Administrated by the National Reference Database (NRDB). The reference database was developed, installed and is operated by Systor Trondheim AS.
 Poland 2006.02.?? Free To be administrated by the National Central Database (PLI-CBD) run by Office of Electronic Communications (UKE). 30-day max porting time is to be reduced to 1 day.
 Portugal 2002.01.01 5–10 Free[64] Operated by Portabil S.A. Solution implemented by Systor Trondheim AS of Norway.
 Romania 2008.10.21 3[65] Free Developed by UTI Systems based on the Porthus implementation [66]
 Russia 2013.12.01 8[67] RUR 0–100[68][69] CBDPN was installed.
 Serbia 2011.07.01 2 Free
 Slovakia 2004.05.01 4 Free Portation request done in 5 days
 Slovenia 2005.12.31 5 EUR 5 5 EUR is a maximum possible price
 Spain 2000.10.?? 1 Free[70] Central database managed through the AOPM (Asociación de Operadores para la Portabilidad Móvil).
 Sweden 2001.09.01 5–6[71][72] Free The largest operators formed independent company, SNPAC AB, to procure central database (CRDB) solution. Implementation of CRDB is carried out by Cap Gemini & Oracle.
  Switzerland 2000.03.01[73] 5 Free[74]
 Turkey 2008.11.09 2–6 Free AVEA and Vodafone hired Gantek to implement central database (CRDB) solution and donated it to Turkish Telecommunications Regulatory Authority. Number Portability Clearinghouse services were previously handled by iconectiv. SIM replacement required.
 Ukraine 2019.05.01 1 Free Participants: 3Mob, Lifecell, Vodafone, Kyivstar, Intertelecom [75]
 United Kingdom 2003.07.25 1 Free Users in the United Kingdom are required to use a Porting Authorisation Code (PAC)[76] [77]

Middle East and Africa

[edit]
Country Implementation date
yyyy.mm.dd 		Time to port
days 		Price Short notes References
 Bahrain 2011.07.08 Free Managed by the Systor Cntral System.
 Egypt 2008.04.07 24 hours Free (may request 5 EGP for new MNP SIM fee), was charging 75 EGP before NPC serves the centralized administrative and provisioning role of MNP, where Giza Systems is the system integrator. Cannot revert to existing operator before 4 months of service to new operator. Porting to another operator, line should be at least 4 months old. Number Portability Clearinghouse services were previously handled by iconectiv. [78]
 Ghana 2011.07.07 typically 5–10 min., max 24 hours Free Central system operated by Porting Access Ghana, under authorisation from National Communications Authority
 Iran 2016.07.10 3–5 Free
 Israel 2007.12.03 up-to 30 minutes Free Service includes landline as well as mobile numbers [79]
 Ivory Coast 2018 The NP Central data base (NPCDB) "NUMLEX" was developed and installed by Mediafon Datapro.
 Jordan 2010.??.?? [44]
 Kenya 2011.04.01 Free [80]
 Kuwait 2013.06.15 1 Free The Ministry of Telecommunications has launched the service on 2013-06-15. The project manager is the National Technology Enterprises Company www.ntec.com.kw
 Morocco 2019 ongoing deployment In 2019 Mediafon Datapro will successfully implement modern Numlex NPCDB platform.
 Nigeria 2013.04.22 2 Free NCC (Nigerian Communications Commission) has adopted a phased approach to the launch of Mobile Number Portability service in Nigeria. The process to port to CDMA networks will begin as soon as the GSM porting process is completed and launched. Mobile Number Portability will initially be available among the GSM mobile operators: MTN, GLOBACOM, ETISALAT, and AIRTEL. Number Portability Clearinghouse services were previously handled by iconectiv. [81]
 Oman 2006.08.26 Implemented as a decentralized solution by Porthus for Nawras, and by Gulf Business Machines/Telcordia for Oman Mobile.
 Palestine 2020.09.20 1 hour Free Cannot revert to the existing operator before 3 months (for prepaid users)/6 months (for postpaid users) of service to the new operator. [82][83]
 Qatar 2013.01.31 Maximum 1 working day – would be activated the successive day Free, operator can impose SIM card charges if any The National Numbering Committee, established by ictQATAR has taken care of the MNP management. Currently both Ooredoo and Vodafone Qatar allows Port in and Port out for Prepaid and Postpaid Services
 Saudi Arabia 2006.07.08 Free Managed by the Centralized Clearinghouse Approach, The implementer and system integrator is Giza Arabia. Number Portability Clearinghouse services were previously handled by iconectiv.
 Senegal 2015.09.01 MNP goes nearly online, max −24 hours Free The NP Central data base (NPCDB) "NUMLEX" was developed and installed by Mediafon Datapro, administrated by Mediafon Datapro and Comet Afrique Telecoms .

Only MNP.

 South Africa 2006.11.10 The three operators, Vodacom SA, MTN SA, and Cell C, formed an independent company for the implementation and management of the central solution. After delays, the implementation of this solution was awarded to local company Saab Grintek collaborating with iconectiv.
 Tanzania 2017.03.01 Free
 Tunisia 2016 The NP Central data base (NPCDB) "NUMLEX" was developed and installed by Mediafon Datapro, administrated by national NPCDB Administrator.
 UAE Free Number Portability Clearinghouse service is handled by iconectiv.

See also

[edit]

References

[edit]
  1. ^ Ofcom "Decision on reforming the switching of mobile communication services", 19 December 2017
  2. ^ Ofcom "An assessment of alternative solutions for UK number portability", 26 August 2004
  3. ^ Ofcom "Telephone number portability for consumers switching suppliers - Concluding Statement", 29 November 2007
  4. ^ Ofcom "Routing calls to ported telephone numbers - Statement", 1 April 2010
  5. ^ Competition Appeal Tribunal "Vodafone Limited v Office of Communications Judgement | 2008 CAT 22", 18 September 2008
  6. ^ Ofcom. "Changes to the Mobile Number Porting Process, Final Statement", London, 8 July 2010. Retrieved on 6 May 2013
  7. ^ "ANACOM – Enquiry services". www.anacom.pt. 6 October 2014.
  8. ^ a b Quarterly Key Data Report Irish Communications Markets. Retrieved 17 February 2023
  9. ^ "Mobile Portability in Argentina". AFTIC.gob.ar (in Spanish). AFTIC. Archived from the original on 8 October 2015. Retrieved 24 November 2015.
  10. ^ "Argentina". Archived from the original on 12 July 2014. Retrieved 5 August 2014.
  11. ^ "Portabilidad numérica".
  12. ^ "ATT confirma que el 1 de octubre entra en vigencia la portabilidad numérica en Bolivia". 5 September 2018.
  13. ^ "ABR Telecom – Brazilian Association of Telecommunication Resources". www.abrtelecom.com.br. Archived from the original on 6 July 2011. Retrieved 3 December 2009.
  14. ^ "How to Port a Mobile Number". www.wikihow.com/.
  15. ^ "Portabilidad numérica entra en vigencia este viernes – ELESPECTADOR.COM". 28 July 2011. Archived from the original on 7 September 2017. Retrieved 23 January 2014.
  16. ^ "Cambio de operador celular tardará menos de un día". RCN Radio (in Spanish). 9 March 2020. Retrieved 20 June 2020.
  17. ^ "Desde el 1° de julio, el proceso de portabilidad numérica demorará menos de un día". Presidencia de la República. Retrieved 2 July 2020.
  18. ^ "Chile".
  19. ^ "Dominican Republic". Archived from the original on 6 October 2011. Retrieved 30 September 2009.
  20. ^ "La Portabilidad Numérica: Una Historia de Éxito; Otro Compromiso Cumplido". Archived from the original on 7 January 2016. Retrieved 27 August 2015.
  21. ^ "Portabilidad numérica, otro compromiso cumplido por el presidente Sánchez Cerén". Archived from the original on 28 August 2015. Retrieved 27 August 2015.
  22. ^ Jornada, La. "Desde el 5 de julio regirá la portabilidad numérica – La Jornada". www.jornada.unam.mx.
  23. ^ "Australia". Archived from the original on 20 October 2009. Retrieved 3 December 2009.
  24. ^ "Sim tax is increasing from BDT 100 to BDT 200". 16 June 2019.
  25. ^ "携号转网试行 天津可双向转网 海南移动只能单向转出" (in Chinese (China)). 中国之声. 22 November 2010. Archived from the original on 6 March 2016. Retrieved 29 December 2012.
  26. ^ "携号转网岂容运营商"强行挽留"" (in Chinese (China)). 红网. 24 May 2019. Archived from the original on 9 June 2019. Retrieved 24 May 2019.
  27. ^ "11月10日起 "携号转网"将在全国范围开启试运行" (in Chinese (China)). 澎湃新闻. 9 November 2019. Archived from the original on 18 January 2021. Retrieved 9 November 2019.
  28. ^ ""携号转网"正式启动，工信部点名"百年套餐"等障碍" (in Chinese (China)). 第一财经. 27 November 2019. Archived from the original on 4 November 2020. Retrieved 29 November 2019.
  29. ^ "Office of the Communications Authority – Mobile Number Portability". www.ofca.gov.hk. Archived from the original on 21 October 2019. Retrieved 24 January 2014.
  30. ^ "Mobile Number Portability". Telecom Regulatory Authority of India. Retrieved 11 August 2023.
  31. ^ Pankaj Doval (25 February 2015). "National Number Portability approved: Retain your mobile number while shifting cities". The Times of India.
  32. ^ "TRAI". Archived from the original on 15 January 2013. Retrieved 6 January 2013.
  33. ^ "::MNP Interconnection Telecom Solutions India Pvt Ltd::". www.mnpindia.in. Archived from the original on 7 September 2017. Retrieved 17 April 2013.
  34. ^ "::MNP Interconnection Telecom Solutions India Pvt Ltd::". www.mnpindia.in. Archived from the original on 10 August 2019. Retrieved 16 July 2013.
  35. ^ "Switchover/MNP (Mobile Number Portability) – How to purchase or reserve – SoftBank Shop – Mobile – SoftBank".
  36. ^ g_fasol (14 September 2006). "Mobile number portability (MNP) in Japan".
  37. ^ "Maxis Telecommunication MNP FAQ". Archived from the original on 29 September 2010. Retrieved 30 September 2010.
  38. ^ Celcom Telecommunication MNP FAQ
  39. ^ "Switch to DiGi FAQ". Archived from the original on 27 September 2010. Retrieved 30 September 2010.
  40. ^ "MNP Malaysia-launched Nationwide in October".
  41. ^ "Maldives introduces mobile number portability". Archived from the original on 15 March 2016. Retrieved 15 March 2016.
  42. ^ "Maldives launches mobile number portability". Archived from the original on 15 March 2016. Retrieved 15 March 2016.
  43. ^ "Customer Guide for availing the facility of Mobile Number Portability (MNP)" (PDF).
  44. ^ a b c d "Mobile Number Portability MAP. MNP interactive online map".
  45. ^ "Pakistan Mobile Number Portability Database (Guarantee) Limited". pmdpk.com.
  46. ^ "Mobile number portability now available in Philippines". ABS-CBN News. 30 September 2021.
  47. ^ It's confirmed – Singapore has incomplete number portability
  48. ^ "Countries with Mobile Number Portability". XConnect. 18 July 2019. Retrieved 25 July 2019.
  49. ^ 手機門號攜碼移轉程序變快：今天申請，明天就生效！. iThome (in Traditional Chinese). Retrieved 21 September 2018.
  50. ^ "手機攜碼換電信公司「費用減半」 明年2月降至112元 – 生活 – 自由時報電子報". Retrieved 21 September 2018.
  51. ^ "Number portability service approved – The Nation". 17 January 2017. Archived from the original on 7 September 2017. Retrieved 5 June 2017.
  52. ^ "Guide to Mobile Number Portability". Ministry of Information and Communication (in Vietnamese). 16 November 2018.
  53. ^ "Balkanweb News Agency". Archived from the original on 17 May 2014. Retrieved 22 December 2010.
  54. ^ "Оператор мобильной связи Азербайджана запустил услугу переноса номеров". 1 August 2013.
  55. ^ "Azerfon приступил к оказанию услуги "Перенос мобильных номеров"". 1st News.
  56. ^ "Od 1. januara moguć prijenos broja u mobilnim mrežama". klix.ba.
  57. ^ "Change your service to Lemontel". Lemontel.com.cy. Archived from the original on 29 January 2013. Retrieved 21 June 2013.
  58. ^ TeleGeography. "MNP a reality, but how many users will notice?". www.telegeography.com. Archived from the original on 4 January 2013.
  59. ^ "Nummerflytning – Telia". Archived from the original on 12 January 2010. Retrieved 7 November 2009.
  60. ^ "Suomen numerot NUMPAC Oy: Numpac in English". www.numpac.fi.
  61. ^ (in French) 3 days maximum time-to-port Arcep, November 2011
  62. ^ "Portare.md". Archived from the original on 17 May 2014. Retrieved 15 July 2013.
  63. ^ "EEC report MNP in Europe". Archived from the original on 19 July 2011. Retrieved 26 November 2010.
  64. ^ "ANACOM – Table of prices (reported up to the second half of 2012)". Anacom.pt. Retrieved 21 June 2013.
  65. ^ "Portabilitate". Portabilitate.ro. Retrieved 21 June 2013.
  66. ^ "PORTABILITATE". www.portabilitate.ro.
  67. ^ "Постановление Правительства Российской Федерации от 15 июля 2013 г. N 599 "О внесении изменений в Правила оказания услуг подвижной связи"". Российская Газета.
  68. ^ "Проект Федерального закона Российской Федерации "О внесении изменений в Федеральный Закон ""О связи""". Российская Газета.
  69. ^ "Mobile Number Portability in Russia Guidelines (English)". MobileNumberPortability.ru. Archived from the original on 1 February 2014. Retrieved 27 August 2018.
  70. ^ "Mobile Number Portability in Spain Guidelines (Spanish)". portabilidadmovil.es. Archived from the original on 11 June 2013. Retrieved 26 January 2014.
  71. ^ "Telenor – Kundservice – Nummerflytt". Telenor.se. Archived from the original on 28 January 2013. Retrieved 21 June 2013.
  72. ^ "Byt till Telia – Mobil telefoni – Privat – Telia.se". Tewss.telia.se. 4 April 2013. Retrieved 21 June 2013.
  73. ^ "User Contract ONP". TELDAS Ltd. Archived from the original on 9 July 2021. Retrieved 1 July 2021.
  74. ^ "Switching To Orange – Orange Communications SA/AG". .orange.ch. Retrieved 21 June 2013.
  75. ^ "4 Years of Mobile Number Portability Service in Ukraine" (in Ukrainian). National Commission for the State Regulation of Communications and Informatization.
  76. ^ "PAC Codes". www.portnumber.co.uk. Port Number UK.
  77. ^ "Switching mobile phone provider". Ofcom. 2 March 2022.
  78. ^ https://tra.gov.eg/en/industry/numbering/Pages/Number-Portability-Regulations.aspx. {{cite web}}: Missing or empty |title= (help)
  79. ^ Phone Number Portability and Its Implementation in Telephone Networks in Israel – FAQ. Israel Ministry of Communications (in Hebrew)
  80. ^ "Kenya launches Mobile Number Portability | Balancing Act – Africa". Archived from the original on 16 July 2017.
  81. ^ "Mobile Number Portability FAQ – Nigerian Communications Commission".
  82. ^ "وزير الاتصالات يعلن إطلاق خدمة التناقل الرقمي". WAFA Agency. Retrieved 2 July 2021.
  83. ^ "مع خدمة التناقل الرقمي .. جيب رقمك معاك Ooredoo بتستناك". Ooredoo. Retrieved 2 July 2021.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Mobile_number_portability&oldid=1252834479"