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  2. Local exchange carrier - Wikipedia

    en.wikipedia.org/wiki/Local_exchange_carrier

    Local exchange carrier (LEC) is a regulatory term in telecommunications for the local telephone company. In the United States , wireline telephone companies are divided into two large categories: long-distance ( interexchange carrier , or IXCs) and local (local exchange carrier, or LECs).

  3. Competitive local exchange carrier - Wikipedia

    en.wikipedia.org/wiki/Competitive_local_exchange...

    However, the New York Public Service Commission authorized the nation's first CLEC when it required New York Telephone (the ILEC) to allow Teleport Communications Group's switches in New York City to connect as peers. [3] Other states followed New York's lead so that by the mid-1990s most of the large states had authorized local exchange ...

  4. List of United States telephone companies - Wikipedia

    en.wikipedia.org/wiki/List_of_United_States...

    In the following states and regions, the primary local carrier is not an RBOC: Lumen Technologies, in addition to its role as the BOC in the areas of 14 states gained from its acquisition of Qwest, Lumen serves other non-ex-Bell local exchanges in those states, as well as some in Florida and the Las Vegas metropolitan area in Nevada.

  5. Incumbent local exchange carrier - Wikipedia

    en.wikipedia.org/wiki/Incumbent_local_exchange...

    An incumbent local exchange carrier is a local exchange carrier (LEC) in a specific area that on the date of enactment of the Telecommunications Act of 1996 , provided telephone exchange service on the date of enactment, was deemed to be a member of the National Exchange Carrier Association pursuant to the Code of Federal Regulations (C.F.R ...

  6. Local telephone service - Wikipedia

    en.wikipedia.org/wiki/Local_telephone_service

    Local telephone companies more recently become involved in providing Internet by DSL and dial-up services. Local telephone wires terminate at the central office (telephone exchange), a structure containing the hardware needed to switch calls among local lines and long-distance networks. Thus, when a call was placed by a customer outside the ...

  7. Telephone exchange names - Wikipedia

    en.wikipedia.org/wiki/Telephone_exchange_names

    Telephone numbers listed in 1920 in New York City having three-letter exchange prefixes. In the United States, the most-populous cities, such as New York City, Philadelphia, Boston, and Chicago, initially implemented dial service with telephone numbers consisting of three letters and four digits (3L-4N) according to a system developed by W. G. Blauvelt of AT&T in 1917. [1]

  8. Regional Bell Operating Company - Wikipedia

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

    A "Baby Bell" is a local telephone company in the United States that was in existence at the time of the breakup of AT&T into the resulting Regional Bell Operating Companies (RBOCs). Sometimes also referred to as an "ILEC" (Incumbent Local Exchange Carrier) they were the former Bell System or Independent Telephone Company responsible for ...

  9. Local loop - Wikipedia

    en.wikipedia.org/wiki/Local_loop

    The local loop may terminate at a circuit switch owned by a competitive local exchange carrier and housed in a point of presence (POP), which typically is an incumbent local exchange carrier telephone exchange. A local loop supports voice and/or data communications applications in the following ways: analog voice and signaling used in ...

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