Local Calling Guide

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

NXX: 492

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-492 A Chicago Zone 08-Portsmouth IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358      
773-492 0 Chicago Zone 08-Portsmouth IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-10-23   
773-492 1 Chicago Zone 08-Portsmouth IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-10-23   
773-492 2 Chicago Zone 08-Portsmouth IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-02-19   
773-492 3 Chicago Zone 08-Portsmouth IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-02-19   
773-492 4 Chicago Zone 08-Portsmouth IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-02-19   
773-492 5 Chicago Zone 08-Portsmouth IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-03-02   
773-492 6 Chicago Zone 08-Portsmouth IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-03-04   
773-492 7 Chicago Zone 08-Portsmouth IL   400G CLEAR RATE COMMUNICATIONS, INC. - IL 358   2012-06-10   
773-492 8 Chicago Zone 08-Portsmouth IL CHCGIL24DS6  224C ONVOY, LLC 358   2012-10-01   
773-492 9 Chicago Zone 08-Portsmouth IL   515J IP HORIZON LLC 358   2013-08-26   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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