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Continental Cablevision

Comcast MO Group, Inc.
Private (Subsidiary of Comcast)
Industry Cable television
Predecessor American Telephone and Telegraph Company
Founded 1983 (1983)
Headquarters United States
Parent Comcast

Comcast MO Group, Inc., formerly MediaOne Group, Inc. and originally US WEST, Inc., was a cable company that was founded in 1983 as one of the original Regional Bell Operating Companies. Founded under the Modification of Final Judgement (United States v. Western Electric Co., Inc. 552 Fed. Supp. 131), a case related to the antitrust breakup of AT&T, it began expansion into the cable television field and later spun off U S WEST Communications and US WEST Dex into a "new" US WEST in 1998.

Until 1990, US WEST was a regional holding company that owned three Bell Operating Companies: The Mountain States Telephone and Telegraph Company (or Mountain Bell, based in Denver, Colorado); Northwestern Bell, based in Omaha, Nebraska; and Pacific Northwest Bell, based in Seattle, Washington. It also had a directory publishing division, LANDMARK Publishing, which later became US WEST Direct. In 1988, the three companies began doing business under the US WEST Communications name. On January 1, 1991, Northwestern Bell and Pacific Northwest Bell were legally merged into Mountain Bell which was renamed US WEST Communications, Inc. US WEST was the first RBOC to consolidate its Bell Operating Companies (the other was BellSouth).

US WEST became a pioneer in the introduction and rapid system-wide implementation of telephone technologies designed by Bellcore (now Telcordia Technologies) in the 1980s and 1990s. Their lead in this push became one that many other Regional Bell Operating Companies had to scramble to keep up with.


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