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.

Switch: MRBGWVBUHPA

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
304-596 A Martinsburg WV 4095 FIBERNET, LLC - WV 240      
304-596 2 Martinsburg WV 4095 FIBERNET, LLC - WV 240      
304-596 5 Martinsburg WV 4095 FIBERNET, LLC - WV 240      
304-596 6 Martinsburg WV 4095 FIBERNET, LLC - WV 240      
304-596 9 Martinsburg WV 4095 FIBERNET, LLC - WV 240      
304-597 A Keyser WV 4095 FIBERNET, LLC - WV 240      
304-820 1 Falling Waters WV 4095 FIBERNET, LLC - WV 240   2007-02-01   
304-821 2 Inwood WV 4095 FIBERNET, LLC - WV 240   2007-02-01   
304-867 3 Berkeley Springs WV 4095 FIBERNET, LLC - WV 240   2007-02-01   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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