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]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
304-620 5 Martinsburg WV FRDRMDFRXSX  6394 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 240   2014-09-06   
304-620 6 Martinsburg WV MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2012-07-06   
304-620 7 Martinsburg WV MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2012-07-06   
304-620 8 Martinsburg WV FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240   2010-07-11   
304-620 9 Martinsburg WV FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240   2014-02-09   
304-621 A Elkins WV CLBGWVMARMD  6284 UNITED STATES CELLULAR - WV 256      
304-621 0 Elkins WV CLBGWVMARMD  6284 UNITED STATES CELLULAR - WV 256      
304-621 1 Elkins WV CLBGWVMARMD  6284 UNITED STATES CELLULAR - WV 256      
304-621 2 Elkins WV CLBGWVMARMD  6284 UNITED STATES CELLULAR - WV 256      
304-621 3 Elkins WV CLBGWVMARMD  6284 UNITED STATES CELLULAR - WV 256      
304-621 4 Elkins WV   145J TERRA NOVA TELECOM INC. 256   2021-01-29   
304-621 5 Elkins WV CLBGWVMAX3X  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 256   2020-06-26   
304-621 6 Elkins WV CLBGWVMAJMD  9944 LEVEL 3 COMMUNICATIONS, LLC - WV 256   2014-09-21   
304-621 7 Elkins WV CLBGWVMARMD  6284 UNITED STATES CELLULAR - WV 256      
304-621 8 Elkins WV CLBGWVMARMD  6284 UNITED STATES CELLULAR - WV 256   2014-04-18   
304-621 9 Elkins WV CLBGWVMAXHX  080F BANDWIDTH.COM CLEC, LLC - WV 256   2011-06-19   
304-622 A Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-623 A Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-623 0 Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-623 1 Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-623 2 Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-623 3 Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-623 4 Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-623 5 Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-623 6 Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-623 7 Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-623 8 Clarksburg WV   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 256   2026-05-15   
304-623 9 Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-624 A Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-625 A Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-625 0 Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-625 1 Clarksburg WV CLBGWVMARMD  6284 UNITED STATES CELLULAR - WV 256   2006-01-27   
304-625 2 Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-625 3 Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-625 4 Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-625 5 Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-625 6 Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-625 7 Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-625 8 Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-625 9 Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-626 A Clarksburg WV CLBGWVMAPS1  9214 FRONTIER WEST VIRGINIA INC. 256      
304-626 0 Clarksburg WV CLBGWVMARMD  6284 UNITED STATES CELLULAR - WV 256      
304-626 1 Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-626 2 Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-626 3 Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-626 4 Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-626 5 Clarksburg WV CLBGWVMARMD  6284 UNITED STATES CELLULAR - WV 256      
304-626 6 Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-626 7 Clarksburg WV CLBGWVMADS0  9214 FRONTIER WEST VIRGINIA INC. 256      
304-626 8 Clarksburg WV CLBGWVMAPS1  9214 FRONTIER WEST VIRGINIA INC. 256      

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Last updated: Sat, 02 May 2026 12:20:53 UTC

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