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: 358

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
304-358 A Franklin WV FKLNWVFHRS1  9214 FRONTIER WEST VIRGINIA INC. 256      
304-358 0 Franklin WV CLBGWVMAXHX  080F BANDWIDTH.COM CLEC, LLC - WV 256      
304-358 1 Franklin WV FKLNWVFHRS1  9214 FRONTIER WEST VIRGINIA INC. 256      
304-358 2 Franklin WV FKLNWVFHRS1  9214 FRONTIER WEST VIRGINIA INC. 256      
304-358 3 Franklin WV FKLNWVFHRS1  9214 FRONTIER WEST VIRGINIA INC. 256      
304-358 4 Franklin WV CLBGWVMA9MD  624H ONVOY SPECTRUM, LLC 256      
304-358 5 Franklin WV CLBGWVMAXUX  077G TELEPORT COMMUNICATIONS AMERICA, LLC - WV 256      
304-358 6 Franklin WV WLSMWV012MD  5562 METROPCS, INC. 256      
304-358 7 Franklin WV FKLNWVFHRS1  9214 FRONTIER WEST VIRGINIA INC. 256      
304-358 8 Franklin WV FKLNWVFHRS1  9214 FRONTIER WEST VIRGINIA INC. 256      
304-358 9 Franklin WV   145J TERRA NOVA TELECOM INC. 256      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.