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  2. AT&T Mobility - Wikipedia

    en.wikipedia.org/wiki/AT&T_Mobility

    AT&T Mobility, LLC, also known as AT&T Wireless and marketed as simply AT&T, is an American telecommunications company. It is a wholly owned subsidiary of AT&T Inc. and provides wireless services in the United States. AT&T Mobility is the second largest wireless carrier in the United States, with 114.5 million subscribers as of March 31, 2024.

  3. United States Cellular Corporation - Wikipedia

    en.wikipedia.org/wiki/United_States_Cellular...

    United States Cellular Corporation ( doing business as UScellular and formerly known as U.S. Cellular) is an American mobile network operator. Its stock is publicly traded, but Telephone and Data Systems Inc. owns a controlling stake (83% economic and 96% voting power). The company was formed in 1983 and is headquartered in Chicago, Illinois.

  4. List of mobile network operators in the United States

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

    AT&T, T-Mobile, Verizon, Boost Mobile, 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 ...

  5. 2007 Departures: 'Cingular' dropped as AT&T absorbs company - AOL

    www.aol.com/news/2007-12-29-2007-departures...

    The beginnings of Cingular can be traced all the way back to 1978, when AT&T created Advanced Mobile Phone Service to offer the services we know as today's modern cellular services. That company ...

  6. History of AT&T - Wikipedia

    en.wikipedia.org/wiki/History_of_AT&T

    History of AT&T. The history of AT&T dates back to the invention of the telephone. The Bell Telephone Company was established in 1877 by Alexander Graham Bell, who obtained the first US patent for the telephone, and his father-in-law, Gardiner Greene Hubbard. Bell and Hubbard also established American Telephone and Telegraph Company in 1885 ...

  7. BellSouth - Wikipedia

    en.wikipedia.org/wiki/BellSouth

    BellSouth, LLC (stylized as BELLSOUTH and formerly known as BellSouth Corporation) was an American telecommunications holding company based in Atlanta, Georgia.BellSouth was one of the seven original Regional Bell Operating Companies after the U.S. Department of Justice forced the American Telephone & Telegraph Company to divest itself of its regional telephone companies on January 1, 1984.

  8. AT&T Wireless Services - Wikipedia

    en.wikipedia.org/wiki/AT&T_Wireless_Services

    Cingular (2005) AT&T Wireless Services, Inc., formerly part of AT&T Corporation, was a wireless telephone carrier founded in 1987 in the United States, based in Redmond, Washington, and later traded on the New York Stock Exchange under the stock symbol "AWE", as a separate entity from its former parent. On October 26, 2004, AT&T Wireless was ...

  9. Mobile network codes in ITU region 3xx (North America)

    en.wikipedia.org/wiki/Mobile_network_codes_in...

    AT&T: AT&T Mobility: Not operational: GSM 850 / GSM 1900 / UMTS 850 / UMTS 1900: Former AT&T Wireless Services, [71] then Cingular Wireless (known as "Cingular Blue") [96] [10] 310: 390: Cellular One of East Texas: TX-11 Acquisition, LLC: Operational: GSM 850 / LTE 700 / CDMA: Former Yorkville Telephone Cooperative [71] [74] 310: 400: IT&E ...

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