Local Calling Guide

Area code/prefix search

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Switch: DNVSILXDDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
309-963 A Danvers IL 1038 FRONTIER COMMUNICATIONS OF ILLINOIS, INC. 366      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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