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: 579

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
304-579 A Martinsburg WV MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
304-579 0 Martinsburg WV MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2011-10-20   
304-579 1 Martinsburg WV   5833 CORETEL WEST VIRGINIA, INC. - WV 240   2003-01-25   
304-579 2 Martinsburg WV MRBGWVBUDS0  9214 FRONTIER WEST VIRGINIA INC. 240   2002-12-01   
304-579 3 Martinsburg WV MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2003-09-30   
304-579 4 Martinsburg WV FRDRMDFRXMD  9944 LEVEL 3 COMMUNICATIONS, LLC - WV 240   2002-11-16   
304-579 5 Martinsburg WV MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2003-09-30   
304-579 6 Martinsburg WV FRDRMDFRXAX  077G TELEPORT COMMUNICATIONS AMERICA, LLC - WV 240   2003-12-15   
304-579 7 Martinsburg WV MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2003-12-24   
304-579 8 Martinsburg WV FRDRMDFRXMD  9944 LEVEL 3 COMMUNICATIONS, LLC - WV 240   2006-03-27   
304-579 9 Martinsburg WV MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2011-08-11   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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