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  2. Cellular network - Wikipedia

    en.wikipedia.org/wiki/Cellular_network

    v. t. e. A cellular network or mobile network is a telecommunications network where the link to and from end nodes is wireless and the network is distributed over land areas called cells, each served by at least one fixed-location transceiver (typically three cell sites or base transceiver stations ). These base stations provide the cell with ...

  3. Roaming - Wikipedia

    en.wikipedia.org/wiki/Roaming

    The calling subscriber (from within the public telephone network) dials the mobile subscriber's MSISDN (the telephone number) of the roaming cell phone. Based on the information contained in the MSISDN (national destination code and the country code), the call is routed to the mobile network gateway MSC (GMSC) .

  4. Wireless Application Protocol - Wikipedia

    en.wikipedia.org/wiki/Wireless_Application_Protocol

    Wireless Application Protocol ( WAP) is a now obsolete technical standard for accessing information over a mobile wireless network. Introduced in 1999, [1] WAP allowed at launch users with compatible mobile devices to browse content such as news, weather and sports scores provided by mobile network operators, specially designed for the limited ...

  5. 2G - Wikipedia

    en.wikipedia.org/wiki/2G

    2G is a short notation for second-generation cellular network, a group of technology standards employed for cellular networks. 2G was commercially launched on the GSM standard in Finland by Radiolinja (now part of Elisa Oyj) in 1991. [1] After 2G was launched, the previous mobile wireless network systems were retroactively dubbed 1G.

  6. List of mobile virtual network operators in the United States ...

    en.wikipedia.org/wiki/List_of_mobile_virtual...

    Mobile virtual network operators (MVNOs) in the United States lease wireless telephone and data service from the three major cellular carriers in the country, AT&T Mobility, T-Mobile US, and Verizon. [1] [2] In 2016, MVNOs across the nation such as Metro PCS , Boost Mobile , Cricket Wireless , and Tracfone brands served about 36 million ...

  7. Mobile country code - Wikipedia

    en.wikipedia.org/wiki/Mobile_country_code

    The mobile country code consists of three decimal digits and the mobile network code consists of two or three decimal digits (for example: MNC of 001 is not the same as MNC of 01). The first digit of the mobile country code identifies the geographic region as follows (the digits 1 and 8 are not used): 0: Test networks. 2: Europe.

  8. List of mobile network operators in the United States

    en.wikipedia.org/wiki/List_of_mobile_network...

    AT&T, T-Mobile, Verizon, Dish Wireless , and uscellular also sell SIM cards through their retail channels, both in-store and online. The top five wireless providers operate nationwide wireless networks which cover most of the population in the United States, while smaller carriers provide native network coverage across selected regions of the ...

  9. Global Mobile Satellite System - Wikipedia

    en.wikipedia.org/wiki/Global_Mobile_Satellite_System

    The Global Mobile Satellite System (GMSS) consists of several satellite phone providers serving private customers. It can be compared to PLMN ( wireless telephony carriers) and PSTN (traditional wire-based telephony ). As of 2023, ranges of numbers have been assigned to two GMSS carriers: Iridium Satellite LLC. Globalstar.