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  2. United States Cellular Corporation - Wikipedia

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

    Website. uscellular.com. 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 ...

  3. 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]

  4. T-Mobile US - Wikipedia

    en.wikipedia.org/wiki/T-Mobile_US

    T-Mobile is the third-largest wireless carrier in the United States, after Verizon and AT&T, with 31.43% of the market share as of June 13, 2024. [6] The company was founded in 1994 by John W. Stanton of the Western Wireless Corporation as VoiceStream Wireless.

  5. Consumer Cellular - Wikipedia

    en.wikipedia.org/wiki/Consumer_Cellular

    consumercellular.com. Consumer Cellular, Inc. is an American postpaid mobile virtual network operator founded by John Marick and Greg Pryor in Portland, Oregon in October 1995. [3] The company offers cellphones, no-contract cellphone plans, and accessories with a focus on users over age 50. Including its corporate headquarters in Scottsdale ...

  6. Comparison of mobile phone standards - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_mobile_phone...

    In 3G, the most prevalent technology was UMTS with CDMA-2000 in close contention. All radio access technologies have to solve the same problems: to divide the finite RF spectrum among multiple users as efficiently as possible. GSM uses TDMA and FDMA for user and cell separation. UMTS, IS-95 and CDMA-2000 use CDMA.

  7. Metro by T-Mobile - Wikipedia

    en.wikipedia.org/wiki/Metro_by_T-Mobile

    Metro by T-Mobile (formerly known as MetroPCS and also simply known as Metro) is an American prepaid mobile virtual network operator (MVNO) wireless service provider and brand owned by T-Mobile US. It previously operated the fifth largest mobile telecommunications network in the United States using code-division multiple access (CDMA).

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