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: CLBGWVMAX8X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
304-398 A New Martinsville WV 612K CSC VOICE, LLC 256      
681-298 A Elkins WV 612K CSC VOICE, LLC 256      
681-477 A Flemington WV 612K CSC VOICE, LLC 256      
681-525 A Farmington WV 612K CSC VOICE, LLC 256      
681-731 A Mill Creek WV 612K CSC VOICE, LLC 256      

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.