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  2. Breakup of the Bell System - Wikipedia

    en.wikipedia.org/wiki/Breakup_of_the_Bell_System

    The new AT&T Inc. lacks the vertical integration that characterized the historic AT&T Corporation and led to the Department of Justice antitrust suit. [23] AT&T Inc. announced it would not switch back to the Bell logo, [24] thus ending corporate use of the Bell logo by the Baby Bells, with the lone exception of Verizon.

  3. Regional Bell Operating Company - Wikipedia

    en.wikipedia.org/wiki/Regional_Bell_Operating...

    In February 2005, SBC announced its plans to acquire former parent company AT&T Corp. for over $16 billion. SBC took on the AT&T name upon merger closure on November 18, 2005. SBC began trading as AT&T Inc. on December 1, 2005, but began re-branding as early as November 21 of the same year. In 2006 AT&T Inc. purchased BellSouth. [3]

  4. North American Numbering Plan - Wikipedia

    en.wikipedia.org/wiki/North_American_Numbering_Plan

    In 1947, AT&T completed the new design for a nationwide toll network that established the original North American area codes. The new numbering plan provided for 152 area codes, each with a capacity to serve as many as 540 central offices. [28] Originally, only eighty-six area codes were assigned.

  5. Long-distance calling - Wikipedia

    en.wikipedia.org/wiki/Long-distance_calling

    During the 1984 breakup of the Bell System, the local access and transport area or LATA concept was created to distinguish between in-region calls (which were handled by local telephone companies such as the Baby Bells) and out-of-region calls (handled by interexchange carriers such as AT&T, MCI and Sprint).

  6. Bell System - Wikipedia

    en.wikipedia.org/wiki/Bell_System

    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.

  7. BellSouth Telecommunications - Wikipedia

    en.wikipedia.org/wiki/BellSouth_Telecommunications

    AT&T Midtown Center, BellSouth Telecommunications (d/b/a AT&T Southeast) headquarters, Atlanta. BellSouth Telecommunications was incorporated in 1983 as SBT&T Co. in Georgia in 1983, [1] as part of the breakup of the Bell System to absorb the original Southern Bell Telephone and Telegraph Company that was incorporated in New York in 1879 ...

  8. Pacific Northwest Bell - Wikipedia

    en.wikipedia.org/wiki/Pacific_Northwest_Bell

    Pacific Northwest Bell was formed in 1961 when it was spun off from the Pacific Telephone and Telegraph Company. Pacific Northwest Bell was split from AT&T in 1984 as ordered in the settlement of United States v. AT&T and became a subsidiary of US West, a then-newly formed Regional Bell Operating Company. US West consolidated its three main ...

  9. Southwestern Bell - Wikipedia

    en.wikipedia.org/wiki/Southwestern_Bell

    On January 1, 1984, as part of the breakup of AT&T, Southwestern Bell Telephone became the namesake and leading subsidiary of the new Regional Bell Operating Company, Southwestern Bell Corporation. SBC was the smallest of all of the seven " Baby Bells ", as it only held one local operating company.

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