In telecommunication, a public land mobile network (PLMN) is a combination of wireless communication services offered by a specific operator in a specific country.[1][2] A PLMN typically consists of several cellular technologies like GSM/2G, UMTS/3G, LTE/4G, offered by a single operator within a given country, often referred to as a cellular network.
A PLMN is identified by a globally unique PLMN code, which consists of a MCC (Mobile Country Code) and MNC (Mobile Network Code). Hence, it is a five- to six-digit number identifying a country, and a mobile network operator in that country, usually represented in the form 001-01 or 001–001.
Note that an MNC can be of two-digit form and three-digit form with leading zeros, so that 01 and 001 are actually two distinct MNCs. Hence the PLMNs 001-02 and 001-002 would be in the same country, but belong to two completely distinct operators (02 and 002). From PLMN assignments, it is apparent that such dualities of two-digit and three-digit MNCs with the same number value are avoided (see the list of mobile country codes and mobile network codes). An example for an actual three-digit/two-digit MNC with leading zeros is in Bermuda MCC, 350-007 and 350-00, 350-01.
PLMN code and IMSI
The IMSI, which identifies a SIM or USIM for one subscriber, typically starts with the PLMN code. For example, an IMSI belonging to the PLMN 262-33 would look like 262330000000001. Mobile phones use this to detect roaming, so that a mobile phone subscribed on a network with a PLMN code that mismatches the start of the USIM's IMSI will typically display an "R" on the icon that indicates connection strength.
PLMN services
A PLMN typically offers the following services to a mobile subscriber:
Emergency calls to local Fire/Ambulance/Police stations.
Voice calls to/from any other PLMN ("cellular network") or PSTN ("landline"/VoIP).
public, land, mobile, network, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, find, sources, news, newspapers, books, scholar, jst. This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Public land mobile network news newspapers books scholar JSTOR March 2020 Learn how and when to remove this template message In telecommunication a public land mobile network PLMN is a combination of wireless communication services offered by a specific operator in a specific country 1 2 A PLMN typically consists of several cellular technologies like GSM 2G UMTS 3G LTE 4G offered by a single operator within a given country often referred to as a cellular network Contents 1 PLMN code 2 Leading zeros in PLMN codes 3 PLMN code and IMSI 4 PLMN services 5 ReferencesPLMN code EditA PLMN is identified by a globally unique PLMN code which consists of a MCC Mobile Country Code and MNC Mobile Network Code Hence it is a five to six digit number identifying a country and a mobile network operator in that country usually represented in the form 001 01 or 001 001 A PLMN is part of a Location Area Identity LAI PLMN and Location Area Code Cell Global Identity CGI LAI and Cell Identifier IMSI see PLMN code and IMSI Leading zeros in PLMN codes EditNote that an MNC can be of two digit form and three digit form with leading zeros so that 01 and 001 are actually two distinct MNCs Hence the PLMNs 001 02 and 001 002 would be in the same country but belong to two completely distinct operators 02 and 002 From PLMN assignments it is apparent that such dualities of two digit and three digit MNCs with the same number value are avoided see the list of mobile country codes and mobile network codes An example for an actual three digit two digit MNC with leading zeros is in Bermuda MCC 350 007 and 350 00 350 01 PLMN code and IMSI EditThe IMSI which identifies a SIM or USIM for one subscriber typically starts with the PLMN code For example an IMSI belonging to the PLMN 262 33 would look like 262330000000001 Mobile phones use this to detect roaming so that a mobile phone subscribed on a network with a PLMN code that mismatches the start of the USIM s IMSI will typically display an R on the icon that indicates connection strength PLMN services EditA PLMN typically offers the following services to a mobile subscriber Emergency calls to local Fire Ambulance Police stations Voice calls to from any other PLMN cellular network or PSTN landline VoIP Short message service SMS services to from any other PLMN or SIP service the original form of texting on a mobile phone now often replaced by Messaging apps Multimedia Messaging Service MMS services to from any other PLMN or SIP service Unstructured Supplementary Service Data USSD for operator specific interactions e g dialing 100 to indicate the current balance Internet data connectivity for arbitrary services e g via GPRS in GSM IuPS in UMTS or LTE The availability quality and bandwidth of these services strongly depends on the particular technology used to implement a PLMN References Edit 3GPP TS 22 101 https www etsi org deliver etsi ts 122100 122199 122101 15 06 00 60 ts 122101v150600p pdf 3GPP TS 21 905 https www etsi org deliver etsi tr 121900 121999 121905 15 00 00 60 tr 121905v150000p pdf Retrieved from https en wikipedia org w index php title Public land mobile network amp oldid 1093706464, wikipedia, wiki, book, books, library,
