competitive local exchange carriers, or the corporate successor of such a firm. An incumbent local exchange carrier is a local exchange carrier (LEC) in...

already established carriers, generally the incumbent local exchange carrier (ILEC). Local exchange carriers (LECs) are divided into incumbent (ILECs) and competitive...

Local telephone companies at the time of the divestiture are also known as Incumbent Local Exchange Carriers (ILEC). The divestiture created local exchange...

network, the local loop terminates in a circuit switch housed in an incumbent local exchange carrier or telephone exchange. Traditionally, the local loop was...

switches used for competitive local exchange carrier services. However, it is not used for incumbent local exchange carrier services, and is not a central...

"local loop", and is owned by the incumbent local exchange carrier (also referred to as the "ILEC", "local exchange", or in the United States either a...

Utah, and Wisconsin. In the following states and regions, the primary local carrier (ILEC) is not an RBOC: Lumen Technologies, in addition to its role as...

numbering plan area (NPA), forming an overlay numbering plan. The incumbent local exchange carrier in the numbering plan area is Bell Canada. Almost all Toronto...

province was once again overlaid with another area code, 368. The incumbent local exchange carrier (ILEC) in 403 is Telus. Prior to 1997, the larger 403 included...

October 2022. The incumbent local exchange carrier (ILEC) in the service area is Bell Canada. The major competitive local exchange carriers (CLECs) are Vidéotron...