Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 304 [Rate centres in NPA 304] [Dial plan for NPA 304]

NXX: 837

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
304-837 A Seth WV KNCYWVVBDS0  9214 FRONTIER WEST VIRGINIA INC. 254      
304-837 0 Seth WV CHTNWVCE8MD  545B CITYNET WEST VIRGINIA, LLC - WV 254   2004-07-30   
304-837 1 Seth WV   5833 CORETEL WEST VIRGINIA, INC. - WV 254   2013-08-12   
304-837 2 Seth WV CHTNWVLEX6Z  080F BANDWIDTH.COM CLEC, LLC - WV 254   2008-11-24   
304-837 3 Seth WV KNCYWVVBDS0  9214 FRONTIER WEST VIRGINIA INC. 254      
304-837 4 Seth WV CHTNWVLE7MD  391E CEBRIDGE TELECOM WV, LLC DBA SUDDENLINK COMMS - WV 254   2007-01-26   
304-837 5 Seth WV CHTNWVLE7MD  391E CEBRIDGE TELECOM WV, LLC DBA SUDDENLINK COMMS - WV 254   2014-02-17   
304-837 6 Seth WV CHTNWVLE9MD  368E YMAX COMMUNICATIONS CORP. - WV 254   2011-04-18   
304-837 7 Seth WV KNCYWVVBDS0  9214 FRONTIER WEST VIRGINIA INC. 254      
304-837 8 Seth WV KNCYWVVBDS0  9214 FRONTIER WEST VIRGINIA INC. 254      
304-837 9 Seth WV CHTNWVLEBMD  508J CENTURYLINK COMMUNICATIONS, LLC 254   2015-10-03   

Last updated: Tue, 07 Oct 2025 16:47:53 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.