Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 815 [Rate centres in NPA 815] [Dial plan for NPA 815]

NXX: 678

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-678 A Richmond IL RCMDILXARS0  1015 FRONTIER NORTH, INC. - IL 358      
815-678 0 Richmond IL   1015 FRONTIER NORTH, INC. - IL 358      
815-678 1 Richmond IL   1015 FRONTIER NORTH, INC. - IL 358      
815-678 2 Richmond IL   1015 FRONTIER NORTH, INC. - IL 358      
815-678 3 Richmond IL   1015 FRONTIER NORTH, INC. - IL 358      
815-678 4 Richmond IL   1015 FRONTIER NORTH, INC. - IL 358      
815-678 6 Richmond IL   1015 FRONTIER NORTH, INC. - IL 358      
815-678 7 Richmond IL   1015 FRONTIER NORTH, INC. - IL 358      
815-678 9 Richmond IL   073H TELNYX LLC 358   2020-07-19   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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