Local Calling Guide

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

NXX: 643

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-643 A Dover IL DOVRILXARS1  1015 FRONTIER NORTH, INC. - IL 368      
815-643 1 Dover IL   1015 FRONTIER NORTH, INC. - IL 368      
815-643 2 Dover IL   1015 FRONTIER NORTH, INC. - IL 368      
815-643 3 Dover IL   495J STRATUS NETWORKS 368   2020-08-02   
815-643 4 Dover IL   624H ONVOY SPECTRUM, LLC 368   2024-12-02   
815-643 6 Dover IL   224C ONVOY, LLC 368   2024-12-30   
815-643 7 Dover IL   508J CENTURYLINK COMMUNICATIONS, LLC 368   2016-08-03   
815-643 8 Dover IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 368   2015-11-05   
815-643 9 Dover IL   145J TERRA NOVA TELECOM INC. 368   2025-06-06   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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