Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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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   2008-11-24   
304-220 2 Charleston Zone 4 WV CHTNWVLE7MD  391E CEBRIDGE TELECOM WV, LLC DBA SUDDENLINK COMMS - WV 254   2014-02-14   
304-220 3 Charleston Zone 4 WV CHTNWVLEX4Z  546B MCIMETRO ACCESS TRANSMISSION SERVICES LLC - WV 254   2011-06-01   
304-220 4 Charleston Zone 4 WV CHTNWVLEX6Z  080F BANDWIDTH.COM CLEC, LLC - WV 254   2014-06-21   
304-220 5 Charleston Zone 4 WV CHTNWVLEX6Z  080F BANDWIDTH.COM CLEC, LLC - WV 254   2014-12-19   
304-220 6 Charleston Zone 4 WV HNTNWVDT0MD  9944 LEVEL 3 COMMUNICATIONS, LLC - WV 254   2006-03-03   
304-220 7 Charleston Zone 4 WV CHTNWVLEXFZ  077G TELEPORT COMMUNICATIONS AMERICA, LLC - WV 254   2013-08-26   
304-220 8 Charleston Zone 4 WV CHTNWVLEX6Z  080F BANDWIDTH.COM CLEC, LLC - WV 254   2015-03-12   
304-220 9 Charleston Zone 4 WV CHTNWVLE8MD  6529 T-MOBILE USA, INC. 254   2018-07-08   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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