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  2. Category:Defunct telecommunications companies of the United ...

    en.wikipedia.org/wiki/Category:Defunct...

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Help; Learn to edit; Community portal; Recent changes; Upload file

  3. Type Allocation Code - Wikipedia

    en.wikipedia.org/wiki/Type_Allocation_Code

    The Type Allocation Code (TAC) is the initial eight-digit portion of the 15-digit IMEI and 16-digit IMEISV codes used to uniquely identify wireless devices.. The Type Allocation Code identifies a particular model (and often revision) of wireless telephone for use on a GSM, UMTS, LTE, 5G NR, iDEN, Iridium or other IMEI-employing wireless network.

  4. AT&T Mobility - Wikipedia

    en.wikipedia.org/wiki/AT&T_Mobility

    A large number of AT&T Mobility employees are unionized, belonging to the Communications Workers of America. The CWA represented roughly 15,000 of the previous 20,000 formerly AT&T Wireless employees as of early 2006. [12] As of the end of 2009, the CWA website claims that roughly 40,000 workers of AT&T Mobility are represented by the union. [13]

  5. AT&T Wireless Services - Wikipedia

    en.wikipedia.org/wiki/AT&T_Wireless_Services

    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.

  6. AT&T Communications - Wikipedia

    en.wikipedia.org/wiki/AT&T_Communications

    AT&T Phone (formerly AT&T U-verse Voice) is a voice communication service delivered over AT&T's IP network . This phone service is digital and provides a voicemail service accessed by *98 from the home number. Customers who subscribe to both AT&T Phone and U-verse TV get features such as call history on channel 9900, which displays the last 100 ...

  7. McCaw Cellular Communications - Wikipedia

    en.wikipedia.org/wiki/McCaw_Cellular_Communications

    Partnering with AT&T as a technology provider, McCaw introduced their "Cellular One" service in 1990, the first truly national cellular system. AT&T purchased 33% of the company in 1992, and arranged a merger in 1994 that made Craig McCaw one of AT&T's largest shareholders. In 2002, the company was spun off from AT&T to become AT&T Wireless ...

  8. AT&T Technologies - Wikipedia

    en.wikipedia.org/wiki/AT&T_Technologies

    AT&T (originally American Telephone & Telegraph Company), after divesting ownership of the Bell System, restructured its remaining companies into three core units. American Bell, Bell Labs and Western Electric were fully absorbed into AT&T, and divided up as an umbrella of several specifically focused companies held by AT&T Technologies, [1] including:

  9. Pacific Bell Wireless - Wikipedia

    en.wikipedia.org/wiki/Pacific_Bell_Wireless

    Pacific Bell Wireless, LLC is a wireless operating division of AT&T Mobility. [1] Pacific Bell Wireless is legally known as Pacific Bell Wireless, LLC d/b/a Cingular Wireless. [citation needed] It was founded in the mid-1990s, initially named Pacific Bell Mobile Services, as a means for Pacific Telesis to capitalize on the wireless market it ...