Local Calling Guide

Area code/prefix search

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Switch: DKLBILXAPS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
815-754 A De Kalb IL 1036 FRONTIER NORTH, INC. - IL 364      

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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