Local number portability

Local number portability (LNP) for fixed lines, and full mobile number portability (FMNP) for mobile phone lines, refers to the ability of a "customer of record" of an existing fixed-line or mobile telephone number assigned by a local exchange carrier (LEC) to reassign the number to another carrier ("service provider portability"), move it to another location ("geographic portability"), or change the type of service ("service portability").[1] In most cases, there are limitations to transferability with regards to geography, service area coverage, and technology. Location Portability and Service Portability are not consistently defined or deployed in the telecommunication industry.[2]

In the United States and Canada, mobile number portability is referred to as WNP or WLNP (Wireless LNP).[3] In the rest of the world it is referred to as mobile number portability (MNP).[4] Wireless number portability is available in some parts of Africa, Asia, Australia, Latin America and most European countries including Britain; however, this relates to transferability between mobile phone lines only. Canada, South Africa and the United States are the only countries that offer full number portability transfers between both fixed lines and mobile phone lines,[5] because mobile and fixed line numbers are mixed in the same area codes, and are billed identically for the calling party, the mobile user usually pays for incoming calls and texts; in other countries all mobile numbers are placed in higher priced mobile-dedicated area codes and the originator of the call to the mobile phone pays for the call. The government of Hong Kong has tentatively approved fixed-mobile number portability; however, as of July 2012, this service is not yet available.

Some cellular telephone companies will charge for this conversion as a regulatory cost recovery fee.

  1. ^ "Cable Entry into Voice and High Speed Data Services". PLI/Pat. Patents, Copyrights, Trademarks, and Literary Property Course Handbook. 150 (623). Practising Law Institute: 639. October 1996. Number portability refers to customer's ability to retain his/her telephone number while changing the type of service or the service provider. There are three types of number portability:
    i. "Service provider portability" change telephone companies in same local area
    ii. "Service portability" change type of service (e.g., from cellular to Internet)
    iii. "Geographic portability" move to a different local area, even to another state.
  2. ^ "+6287881210907 Portability (LNP) - V74.0". Wholesale: Products & Services. Denver, CO: CenturyLink, Inc. February 17, 2012. Retrieved April 23, 2012.
  3. ^ "Wireless Local Number Portability (WLNP)". July 26, 2011.
  4. ^ "MNP Introduction" (PDF). Pakistan Telecommunication Authority (PTA). Retrieved April 4, 2008.
  5. ^ Saltzman, Marc. "'phone number portability' arrives in Canada". Sympatico MSN. Archived from the original on March 18, 2009. Retrieved April 4, 2008.