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: 220

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
304-220 A Charleston Zone 4 WV HNTNWVDT0MD  9944 LEVEL 3 COMMUNICATIONS, LLC - WV 254      
304-220 0 Charleston Zone 4 WV CHTNWVLEX6Z  080F BANDWIDTH.COM CLEC, LLC - WV 254      
304-220 2 Charleston Zone 4 WV CHTNWVLE7MD  391E CEBRIDGE TELECOM WV, LLC DBA SUDDENLINK COMMS - WV 254      
304-220 3 Charleston Zone 4 WV CHTNWVLEX4Z  546B MCIMETRO ACCESS TRANSMISSION SERVICES LLC - WV 254      
304-220 4 Charleston Zone 4 WV CHTNWVLEX6Z  080F BANDWIDTH.COM CLEC, LLC - WV 254      
304-220 5 Charleston Zone 4 WV CHTNWVLEX6Z  080F BANDWIDTH.COM CLEC, LLC - WV 254      
304-220 6 Charleston Zone 4 WV HNTNWVDT0MD  9944 LEVEL 3 COMMUNICATIONS, LLC - WV 254      
304-220 7 Charleston Zone 4 WV CHTNWVLEXFZ  077G TELEPORT COMMUNICATIONS AMERICA, LLC - WV 254      
304-220 8 Charleston Zone 4 WV CHTNWVLEX6Z  080F BANDWIDTH.COM CLEC, LLC - WV 254      
304-220 9 Charleston Zone 4 WV CHTNWVLE8MD  6529 T-MOBILE USA, INC. 254      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.