Definitions for "LERG"
Keywords:  tandem, guide, routed, nnx, telcordia
Local Exchange Routing Guide Documents end offices and their relationship to Tandem ( Class 4 Toll) Offices. Produced by Bellcore Traffic Routing Admin (TRA).
Location Exchange Routing Guide
Local Exchange Routing Guide Is a database of the first 6 digits of a telephone number, updated on a regular basis, that provides information for routing telephone calls over the Public Switching Telephone Network, as well as, enables identification of what local company the number belongs to.