Local Calling Guide

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

NXX: 451

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-451 A Chicago Zone 07-Oakland IL CHCGILOKDS0  9329 ILLINOIS BELL TEL CO 358      
773-451 0 Chicago Zone 07-Oakland IL CHCGILOKDS0  9329 ILLINOIS BELL TEL CO 358      
773-451 1 Chicago Zone 07-Oakland IL CHCGILOKDS0  9329 ILLINOIS BELL TEL CO 358      
773-451 2 Chicago Zone 07-Oakland IL CHCGILOKDS0  9329 ILLINOIS BELL TEL CO 358      
773-451 3 Chicago Zone 07-Oakland IL CHCGILOKDS0  9329 ILLINOIS BELL TEL CO 358      
773-451 4 Chicago Zone 07-Oakland IL CHCGILOKDS0  9329 ILLINOIS BELL TEL CO 358      
773-451 5 Chicago Zone 07-Oakland IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2008-12-12   
773-451 6 Chicago Zone 07-Oakland IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2006-03-05   
773-451 7 Chicago Zone 07-Oakland IL CHCGILWUKMD  939H COMMIO, LLC 358   2021-08-29   
773-451 8 Chicago Zone 07-Oakland IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-10-13   
773-451 9 Chicago Zone 07-Oakland IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-10-13   

Last updated: Wed, 07 Feb 2024 04:12:25 UTC

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