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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. ==History== 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 the Indianapolis Telephone Company. It continued to expand throughout the 1920s through acquisitions. In 1930, Indiana Bell's headquarters building in Indianapolis was relocated to the south and west of its original location while employees continued working in it. 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 seven original Regional Bell Operating Companies. In 1990, the independent board of directors of Indiana Bell was dissolved.〔(Indiana Bell Telephone Company, Incorporated ) ''Funding Universe''. Retrieved 2012-05-02.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Indiana Bell」の詳細全文を読む スポンサード リンク
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