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TUCoPS :: Phreaking Technical System Info :: lrgs1202.doc

Telcordia LERG file format specification The local Exchange Routing Guide (LERG) is the rosetta stone of the North American telephone system; it is the database that enables switches to communicate with tandems and with each other. At $10k/Quarter, a LERG subscription is probably beyond the means of most phreaks (and some corporations, who only subscribe every other quarter). But if you should happen to inherit a discarded LERG CD-ROM, you will need the information in this document to write apps that use the LERG data.

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