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  2. Northwestern Bell - Wikipedia

    en.wikipedia.org/wiki/Northwestern_Bell

    On November 10, 1879, Western Union settled a Bell patent infringement suit by getting completely out of the phone business and selling all of its exchanges, including the Keokuk exchange, to the Bell Company. In the fall of 1878, the Northwestern Telephone Company opened an "experimental" exchange in Minneapolis City Hall.

  3. US West - Wikipedia

    en.wikipedia.org/wiki/US_West

    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 ...

  4. Lumen Technologies Building - Wikipedia

    en.wikipedia.org/wiki/Lumen_Technologies_Building

    Named for its current owner, it was previously known as the CenturyLink Building, Qwest Building and the Northwestern Bell Telephone Building. Originally standing 346 feet (105 m) tall, the structure grew to 416 feet (127 m) with the addition of a microwave antenna "crown" in 1958, followed by the addition of a second tier of microwave antennas ...

  5. Design Line telephone - Wikipedia

    en.wikipedia.org/wiki/Design_Line_telephone

    As a consequence, Bell customers still had to pay a monthly lease fee in order to rent the phone's internal components, which remained the property and responsibility of the local Bell provider. Design Line phones are among the few lines of phones produced by Western Electric that were more renowned for looks than durability. Because the ...

  6. Breakup of the Bell System - Wikipedia

    en.wikipedia.org/wiki/Breakup_of_the_Bell_System

    On April 6, 2011, Qwest was acquired by CenturyLink (now Lumen Technologies), an independent telephone provider, [22] bringing Qwest Corporation (originally Mountain Bell), Northwestern Bell, and Pacific Northwest Bell under its control. While based in San Antonio, Texas, since 1992, AT&T Inc. moved its headquarters to Dallas by the end of 2008 ...

  7. Qwest Corporation - Wikipedia

    en.wikipedia.org/wiki/Qwest_Corporation

    Qwest Corporation, doing business as CenturyLink QC, is a Regional Bell Operating Company owned by Lumen Technologies.It was originally named Mountain States Telephone and Telegraph Company, later becoming known as Mountain Bell, then US West Communications, Inc. from 1991 to 2000.

  8. Regional Bell Operating Company - Wikipedia

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

    Cincinnati Bell was the last RBOC to hold the "Bell" name, but it rebranded as Altafiber in March of 2022. Additionally, Bell Canada , the former Bell Telephone Company of Canada (founded in 1880) and which started separating from the Bell System in 1956, and completely by 1975, continues to use the "Bell" trademarks, which it owns outright in ...

  9. Push-button telephone - Wikipedia

    en.wikipedia.org/wiki/Push-button_telephone

    A push-button telephone is a telephone that has buttons or keys for dialing a telephone number, in contrast to a rotary dial used in earlier telephones.. Western Electric experimented as early as 1941 with methods of using mechanically activated reeds to produce two tones for each of the ten digits and by the late 1940s such technology was field-tested in a No. 5 Crossbar switching system in ...