Telecom Directory | Phone Card directory

LATA - - Local Access Transport Areas (200 in the U.S.). A geographic service area defined in the AT&T Modified Final Judgement. The RBOCs (baby Bells) and GTE are restricted to operations within, but not between, LATAs. Long distance service within a LATA is provided by the LEC. Service between LATAs is provided by an IEC. LATAs are represented by a 3-character code, and there are 164 of them across the country.

LEC - - See Local Exchange Carrier

LEC BAN - Billing Account Number - - 3-digit number appended to the billing phone number used as the LEC customer number. Groups all ANIs for a customer.

LEC Billing - - Arrangement whereby the Local Exchange Carrier invoices the customer for some or all telecommunications services.

LEC Card - - The billing arrangement which enables the caller to bill calls to an authorized calling card issued by a local exchange carrier.

LEC Charges - - Charges that are the responsibility of the local exchange carrier.

Letter Of Agency - LOA - - A document that authorizes changing the service provider. (See RespOrg, 800 Portability)

Local Access - - Local Loop. The connection from a subscriber to the Central Office. The portion of a circuit connecting the LEC's CO with the customer's premise equipment across the local network.

Local Access Provider - - Any organization that is authorized to provide local access. (May or may not be the LEC.)

Local Area Network (LAN) - - Number of computers connected together to form one network.

Local Exchange Carrier - LEC - - The local or regional telephone company that owns and operates lines to customer locations and Class 5 Central Office Switches. LECs have connections to other COs, Tandem (Class 4 Toll) offices and may connect directly to IECs like WorldCom, AT&T, MCI, Sprint, etc.

Local Exchange Service - - Local phone calls.

Long Distance Carrier - - A company providing long-distance phone service between LECs and LATAs.

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