Local Calling Guide

Area code/prefix search

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Switch: CHCGILDTDS2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
815-217 A De Kalb IL 972C DIGITAL NETWORK ACCESS COMMUNICATIONS, INC. - IL 364      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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