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: 443

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
304-443 A Williamson WV LOGNWVHCAMD  6940 EAST KENTUCKY NETWRK, LLC DBA APPALACHIAN WIRELESS 254      
304-443 0 Williamson WV CHTNWVLEX6Z  080F BANDWIDTH.COM CLEC, LLC - WV 254   2017-11-05   
304-443 1 Williamson WV CHTNWVLEXBZ  449F ONVOY, LLC - WV 254   2020-12-21   
304-443 2 Williamson WV LOGNWVHCAMD  6940 EAST KENTUCKY NETWRK, LLC DBA APPALACHIAN WIRELESS 254   2008-08-25   
304-443 3 Williamson WV LOGNWVHCAMD  6940 EAST KENTUCKY NETWRK, LLC DBA APPALACHIAN WIRELESS 254   2008-08-25   
304-443 4 Williamson WV CHTNWVLEXBZ  449F ONVOY, LLC - WV 254   2019-09-03   
304-443 5 Williamson WV CHTNWVLEXBZ  449F ONVOY, LLC - WV 254   2020-08-20   
304-443 6 Williamson WV CHTNWVLEXFZ  077G TELEPORT COMMUNICATIONS AMERICA, LLC - WV 254   2019-03-08   
304-443 7 Williamson WV CHTNWVLEBMD  508J CENTURYLINK COMMUNICATIONS, LLC 254   2015-10-06   
304-443 8 Williamson WV   5833 CORETEL WEST VIRGINIA, INC. - WV 254   2019-04-25   
304-443 9 Williamson WV CHTNWVLEXBZ  449F ONVOY, LLC - WV 254   2020-08-20   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.