Local Calling Guide

Area code/prefix search

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NPA: 773 [Rate centres in NPA 773] [Dial plan for NPA 773]

NXX: 279

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-279 A Chicago Zone 02-Irving IL CHCGILIRDS0  9329 ILLINOIS BELL TEL CO 358      
773-279 0 Chicago Zone 02-Irving IL CHCGILIRDS0  9329 ILLINOIS BELL TEL CO 358      
773-279 1 Chicago Zone 02-Irving IL CHCGILIRDS0  9329 ILLINOIS BELL TEL CO 358      
773-279 2 Chicago Zone 02-Irving IL CHCGILIRDS0  9329 ILLINOIS BELL TEL CO 358      
773-279 3 Chicago Zone 02-Irving IL CHCGILIRDS0  9329 ILLINOIS BELL TEL CO 358      
773-279 4 Chicago Zone 02-Irving IL CHCGILIRDS0  9329 ILLINOIS BELL TEL CO 358      
773-279 5 Chicago Zone 02-Irving IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-10-25   
773-279 6 Chicago Zone 02-Irving IL CHCGILIRDS0  9329 ILLINOIS BELL TEL CO 358      
773-279 7 Chicago Zone 02-Irving IL CHCGILIRDS0  9329 ILLINOIS BELL TEL CO 358      
773-279 8 Chicago Zone 02-Irving IL CHCGILIRDS0  9329 ILLINOIS BELL TEL CO 358      
773-279 9 Chicago Zone 02-Irving IL CHCGILIRDS0  9329 ILLINOIS BELL TEL CO 358      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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