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  2. Southwestern Bell - Wikipedia

    en.wikipedia.org/wiki/Southwestern_Bell

    Southwestern Bell. Southwestern Bell Telephone Company, LLC is a wholly owned subsidiary of AT&T. It does business as other d.b.a. names in its operating region, which includes Arkansas, Kansas, Missouri, Oklahoma, Texas, and portions of Illinois. The company is currently headquartered in Dallas, Texas at One AT&T Plaza.

  3. 909 Chestnut Street - Wikipedia

    en.wikipedia.org/wiki/909_Chestnut_Street

    909 Chestnut Street. The Beacon on Chestnut (stylized as THE BEACON on Chestnut, formerly One SBC Center, One Bell Center, One AT&T Center, and 909 Chestnut) is a 44-story building in downtown St. Louis, Missouri at 909 Chestnut Street on the Gateway Mall. It is Missouri's largest building by area with 1,400,000 square feet (130,000 m 2). [5]

  4. AT&T Michigan Headquarters - Wikipedia

    en.wikipedia.org/wiki/AT&T_Michigan_Headquarters

    The AT&T Building (formerly known as the SBC Building, the Ameritech Building and the Michigan Bell Building) was completed for the Michigan Bell Telephone Company in 1919 [1] and expanded in 1928. It is located at 1365 Cass Avenue, and occupies the block bordered by First Street, Cass Avenue, State Street, and Michigan Avenue .

  5. Ameritech - Wikipedia

    en.wikipedia.org/wiki/Ameritech

    Ameritech. AT&T Teleholdings, Inc., formerly known as Ameritech Corporation (and before that American Information Technologies Corporation), is an American telecommunications company that arose out of the 1984 AT&T divestiture. Ameritech was one of the seven Regional Bell Operating Companies created following the breakup of the Bell System.

  6. Pacific Bell - Wikipedia

    en.wikipedia.org/wiki/Pacific_Bell

    On November 18, 2005, SBC completed its acquisition of AT&T Corp. to form AT&T Inc. Pacific Bell is now known as "Pacific Bell Telephone Company", dba AT&T California. In 2006, the company's direct parent, originally Ameritech, became AT&T Teleholdings due to an internal reorganization at AT&T. Its former direct parent, Pacific Telesis Group ...

  7. SBC Telecom - Wikipedia

    en.wikipedia.org/wiki/SBC_Telecom

    SBC Telecom. SBC Telecom, Inc. d/b/a AT&T Small Business is a CLEC owned by AT&T that offers local telephone service outside the AT&T Bell Operating Company regions. [1] It was formed in 1999 following provisions that required SBC Communications to offer telephone service outside its boundaries in order to get approval to merge with Ameritech.

  8. BellSouth Telecommunications - Wikipedia

    en.wikipedia.org/wiki/BellSouth_Telecommunications

    Website. www.att.com www.bellsouth.com. BellSouth Telecommunications, LLC was an operating company of AT&T that served the southeastern United States. It consisted of the operations of Southern Bell and South Central Bell. BellSouth Telecommunications was a subsidiary of BellSouth Corporation which was acquired by AT&T Inc. on December 29, 2006.

  9. Bell System - Wikipedia

    en.wikipedia.org/wiki/Bell_System

    AT&T (1885–1983) The Bell System was a system of telecommunication companies, led by the Bell Telephone Company and later by the American Telephone and Telegraph Company (AT&T), that dominated the telephone services industry in North America for over 100 years from its creation in 1877 until its antitrust breakup in 1983.