Local Calling Guide

Area code/prefix search

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NPA: 815 [Rate centres in NPA 815] [Dial plan for NPA 815]

NXX: 310

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-310 A Utica IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-310 0 Utica IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2008-12-12   
815-310 1 Utica IL CHCGIL24DS6  224C ONVOY, LLC 358   2012-09-30   
815-310 2 Utica IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-04-03   
815-310 3 Utica IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2002-07-30   
815-310 5 Utica IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-12-28   
815-310 6 Utica IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2015-06-11   
815-310 8 Utica IL CHCGILDTKMD  5447 ACCESS ONE, INC. - IL 358   2006-08-07   
815-310 9 Utica IL   145J TERRA NOVA TELECOM INC. 358   2023-04-26   

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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