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  2. AT&T - Wikipedia

    en.wikipedia.org/wiki/AT&T

    AT&T Inc., an abbreviation for its predecessor's former name, the American Telephone and Telegraph Company, is an American multinational telecommunications holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. [5]

  3. AT&T Corporation - Wikipedia

    en.wikipedia.org/wiki/AT&T_Corporation

    AT&T Corporation, an abbreviation for its former name, the American Telephone and Telegraph Company, was an American telecommunications company that provided voice, video, data, and Internet telecommunications and professional services to businesses, consumers, and government agencies.

  4. AT&T Communications - Wikipedia

    en.wikipedia.org/wiki/AT&T_Communications

    AT&T Communications is a division of AT&T that focuses on mobile phone, broadband, fixed line telephone, home security, network security, and business services. The division houses AT&T Mobility, AT&T Internet, AT&T Phone, AT&T Long Distance, AT&T Labs, AT&T Digital Life, and AT&T Cybersecurity.

  5. List of telecommunications companies - Wikipedia

    en.wikipedia.org/wiki/List_of_telecommunications...

    Telecommunications company; ITU-T; Landline; List of mobile network operators. List of mobile network operators of the Americas; List of mobile network operators in Asia and Oceania

  6. 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 third largest wireless carrier in the United States, with 116 million subscribers as of September 30, 2024. [3]

  7. Breakup of the Bell System - Wikipedia

    en.wikipedia.org/wiki/Breakup_of_the_Bell_System

    The new AT&T Inc. lacks the vertical integration that characterized the historic AT&T Corporation and led to the Department of Justice antitrust suit. [23] AT&T Inc. announced it would not switch back to the Bell logo, [24] thus ending corporate use of the Bell logo by the Baby Bells, with the lone exception of Verizon.

  8. AT&T Internet - Wikipedia

    en.wikipedia.org/wiki/AT&T_Internet

    AT&T Internet provides internet access to computers connected on-premises via Ethernet cabling or Wi-Fi from the included residential gateway or DSL modem. AT&T Fiber, or as it is known AT&T Internet powered by Fiber, [2] provides fiber to the home (FTTH) service in select markets. Historically a form of AT&T Fiber Internet launched in the fall ...

  9. List of largest companies in the United States by revenue

    en.wikipedia.org/wiki/List_of_largest_companies...

    AT&T: Conglomerate and telecommunications 122,428 1.4% 150,470 ... Pharmaceutical industry 35,153 9 Amazon: Retail/Technology 30,425 10 Nvidia: Technology 29,760