Local Exchange Carriers - Definition. Was ist Local Exchange Carriers
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Was (wer) ist Local Exchange Carriers - definition

COMPANY THAT PROVIDES THE MAIN LOCAL PHONE SERVICE TO AN AREA
Local Exchange Carrier; Local exchange company; Local exchange carriers

local exchange carrier         
<communications> (LEC) A company allowed to handle local calls following the break-up of the Bell system in the US by anti-trust regulators. These vary from Regional Bell Operating Companies (RBOC) through to small independents such as Farmers Cooperative. Local exchange carriers are not allowed to handle long-distance traffic. This is handled by inter-exchange carriers (IXC) who are not allowed to handle local calls. (2002-08-28)
Local exchange carrier         
Local exchange carrier (LEC) is a regulatory term in telecommunications for the local telephone company.
Incumbent local exchange carrier         
TELEPHONE CARRIER WITH THE (POSSIBLY FORMER) MONOPOLY IN A LOCAL AREA
Incumbent local exchange company; ILEC; I LEC; Incumbent Local Exchange Carrier; Wireline incumbent; Incumbent carrier; Wireline Incumbents
An incumbent local exchange carrier (ILEC) is a local telephone company which held the regional monopoly on landline service before the market was opened to competitive local exchange carriers, or the corporate successor of such a firm.

Wikipedia

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). This structure is a result of 1984 divestiture of then-regulated monopoly carrier American Telephone & Telegraph. Local telephone companies at the time of the divestiture are also known as Incumbent Local Exchange Carriers (ILEC).

The divestiture created local exchange carriers for the management of local telephone lines and switches, and provisioning of local phone services within their business area, as well as the long-distance calls originating or terminating in their business area. The vast majority of the United States are served by LECs called Baby Bells, or RBOCs (Regional Bell Operating Companies). The rest of the United States, most commonly in rural or outlying suburban areas, are served by independent LECs, known in the industry simply as the "independents." Although independent companies typically serve these areas, RBOC LECs still have vast territories of low population density regions of the country. Therefore, independents generally exist as pockets of territory within a greater RBOC region. Popular independents are Frontier Communications, and Windstream Communications.

Local calls are defined as calls originating and terminating within a local access and transport area (LATA) which is defined by the Federal Communications Commission. All of the Baby Bells, as well as other LECs, typically operate businesses in more than one LATA yet their services of local telephone calls are still defined by LATA boundaries, not their business areas.