Local Calling Guide

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

NXX: 336

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-336 A Chicago Zone 09-South Chicago IL CHCGIL24DS3  4604 FIRST COMMUNICATIONS, LLC - IL 358      
773-336 0 Chicago Zone 09-South Chicago IL   4604 FIRST COMMUNICATIONS, LLC - IL 358      
773-336 1 Chicago Zone 09-South Chicago IL   4604 FIRST COMMUNICATIONS, LLC - IL 358      
773-336 2 Chicago Zone 09-South Chicago IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2008-12-12   
773-336 3 Chicago Zone 09-South Chicago IL CHCGIL24DS3  4604 FIRST COMMUNICATIONS, LLC - IL 358   2004-11-12   
773-336 4 Chicago Zone 09-South Chicago IL CHCGILACGT0  8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358   2004-10-01   
773-336 5 Chicago Zone 09-South Chicago IL CHCGILACGT0  8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358   2005-09-13   
773-336 6 Chicago Zone 09-South Chicago IL CHCGIL24DS3  4604 FIRST COMMUNICATIONS, LLC - IL 358   2004-09-09   
773-336 7 Chicago Zone 09-South Chicago IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   1999-12-03   
773-336 8 Chicago Zone 09-South Chicago IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2000-04-25   
773-336 9 Chicago Zone 09-South Chicago IL   4604 FIRST COMMUNICATIONS, LLC - IL 358      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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