Local Calling Guide

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

NXX: 780

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-780 A Chicago Zone 08-Portsmouth IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-780 0 Chicago Zone 08-Portsmouth IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-06-13   
773-780 1 Chicago Zone 08-Portsmouth IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2003-07-14   
773-780 2 Chicago Zone 08-Portsmouth IL CHCGIL24DS6  224C ONVOY, LLC 358   2011-08-01   
773-780 3 Chicago Zone 08-Portsmouth IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-06-13   
773-780 4 Chicago Zone 08-Portsmouth IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2003-07-14   
773-780 5 Chicago Zone 08-Portsmouth IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2003-08-11   
773-780 6 Chicago Zone 08-Portsmouth IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2003-08-11   
773-780 7 Chicago Zone 08-Portsmouth IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2003-09-12   
773-780 8 Chicago Zone 08-Portsmouth IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2003-09-12   
773-780 9 Chicago Zone 08-Portsmouth IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2003-09-12   

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

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