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Southwestern Bell. Southwestern Bell Telephone Company 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 .
SBC purchased Southern New England Telecommunications in 1998 for $5.01 billion, and Ameritech in 1999 for $61 billion, creating the largest U.S. local phone company at the time. AT&T Corporation , the original parent, was acquired effective November 18, 2005, by SBC, which renamed itself AT&T Inc. and began using the ticker symbol "T" and a ...
AT&T. AT&T Inc. is an American multinational telecommunications holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. [4] It is the world's third-largest telecommunications company by revenue and the second-largest wireless carrier in the United States. [5] As of 2023, AT&T was ranked 13th on the Fortune 500 rankings of the ...
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.
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 ...
Pacific Telesis was the holding company for Pacific Bell, Nevada Bell, Pacific Telesis International, PacTel Mobile Services and PacTel InfoSystems. Pacific Telesis was headquartered in San Francisco and incorporated in Nevada. It was acquired by SBC Communications (the former Southwestern Bell) in 1997, which would eventually become today’s ...
A Regional Bell Operating Company ( RBOC) was a corporate entity created as result of the antitrust lawsuit by the U.S. Department of Justice against the American Telephone and Telegraph Company (AT&T) in 1974 ( United States v. AT&T) and settled in the Modification of Final Judgment on January 8, 1982. AT&T agreed to divest its local exchange ...
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. 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 .