Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 304 [Rate centres in NPA 304] [Dial plan for NPA 304]

NXX: 475

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
304-475 A Delbarton WV DLTNWVGRRS1  9214 FRONTIER WEST VIRGINIA INC. 254      
304-475 0 Delbarton WV   9214 FRONTIER WEST VIRGINIA INC. 254      
304-475 1 Delbarton WV   9214 FRONTIER WEST VIRGINIA INC. 254      
304-475 2 Delbarton WV   9214 FRONTIER WEST VIRGINIA INC. 254      
304-475 3 Delbarton WV   9214 FRONTIER WEST VIRGINIA INC. 254      
304-475 4 Delbarton WV   9214 FRONTIER WEST VIRGINIA INC. 254      
304-475 5 Delbarton WV   9214 FRONTIER WEST VIRGINIA INC. 254      
304-475 6 Delbarton WV   545B CITYNET WEST VIRGINIA, LLC - WV 254   2004-07-30   
304-475 7 Delbarton WV   5833 CORETEL WEST VIRGINIA, INC. - WV 254   2013-08-09   
304-475 8 Delbarton WV   391E CEBRIDGE TELECOM WV, LLC DBA SUDDENLINK COMMS - WV 254   2007-10-25   
304-475 9 Delbarton WV   624H ONVOY SPECTRUM, LLC 254   2021-11-08   

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

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