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: 586

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
304-586 A Winfield WV WNFDWVWFRS1  9214 FRONTIER WEST VIRGINIA INC. 254      
304-586 0 Winfield WV WNFDWVWFRS1  9214 FRONTIER WEST VIRGINIA INC. 254      
304-586 1 Winfield WV WNFDWVWFRS1  9214 FRONTIER WEST VIRGINIA INC. 254      
304-586 2 Winfield WV WNFDWVWFRS1  9214 FRONTIER WEST VIRGINIA INC. 254      
304-586 3 Winfield WV WNFDWVWFRS1  9214 FRONTIER WEST VIRGINIA INC. 254      
304-586 4 Winfield WV WNFDWVWFRS1  9214 FRONTIER WEST VIRGINIA INC. 254      
304-586 5 Winfield WV WNFDWVWFRS1  9214 FRONTIER WEST VIRGINIA INC. 254      
304-586 6 Winfield WV HNTNWVDT0MD  9944 LEVEL 3 COMMUNICATIONS, LLC - WV 254   2004-11-18   
304-586 7 Winfield WV CHTNWVCE8MD  545B CITYNET WEST VIRGINIA, LLC - WV 254   2004-04-05   
304-586 8 Winfield WV CHTNWVJADS0  4095 FIBERNET, LLC - WV 254   2008-11-09   
304-586 9 Winfield WV WNFDWVWFRS1  9214 FRONTIER WEST VIRGINIA INC. 254      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.