Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: DOVRILXARS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
815-643 A Dover IL 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      

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

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