Indiana Bell

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Indiana Bell Telephone Company, Incorporated
Type Private (Subsidiary of AT&T)
Industry Telecommunications
Founded 1920
Headquarters Indianapolis, Indiana, U.S.
Products Local Telephone Service
Parent AT&T (1920-1983)
Ameritech (1984-1999)
SBC/AT&T (1999-present)

Indiana Bell Telephone Company, Incorporated, is the Bell Operating Company serving Indiana. It is an indirect subsidiary of AT&T Inc., owned by AT&T Teleholdings.


Indiana Bell was founded in 1920 to function as the central Bell telephone company in the state of Indiana. It purchased the Indiana operations of the Central Union Telephone Company and also purchased Indianapolis Telephone Company. It continued to expand throughout the 1920s through acquisitions.

In 1930, Indiana Bell's headquarters building in Indianapolis was relocated 52 feet to the south and 100 feet west of its original location. The move was an engineering feat of its time.

Throughout the 1940s and 1950s the company continued to expand by acquiring many smaller telephone companies throughout the state.

After the 1984 Bell System Divestiture, Indiana Bell became a part of Ameritech, one of the 7 original Regional Bell Operating Companies.

In 1990, the independent board of directors of Indiana Bell was dissolved.[1]

Corporate rebranding[edit]

The Indiana Bell name continued to be used until January 1993, when they dropped all of their individual Bell Operating Company names in favor of using their corporate name, Ameritech, for marketing purposes, at which point Indiana Bell began doing business under the trade name Ameritech Indiana. In 2001, 2 years after Ameritech was acquired by SBC Communications, SBC rebranded all of its companies to include the SBC name, and Indiana Bell began doing business as SBC Ameritech Indiana. In 2002, SBC rebranded all of its companies simply as "SBC" for use as a national brand. Indiana Bell then starting doing business as SBC Indiana. After AT&T Corp. was acquired by SBC Communications, SBC renamed itself AT&T, resulting in Indiana Bell taking the trade name AT&T Indiana.