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: FAMTWVMNDS0

Remotes:

Switch Switch name Switch type
FRTNWVRRRS1  FARMINGTON  DE5 
FRVWWVMIRS1  FAIRVIEW  RSM 
MNGHWVMCRS1  MONONGAH  DE5 
MNTNWVCERS1  MANNINGTON  DE5 
RVVLWVJSRS1  RIVESVILLE  DE5 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
304-363 A Fairmont WV 9214 FRONTIER WEST VIRGINIA INC. 256      
304-366 A Fairmont WV 9214 FRONTIER WEST VIRGINIA INC. 256      
304-367 A Fairmont WV 9214 FRONTIER WEST VIRGINIA INC. 256      
304-368 A Fairmont WV 9214 FRONTIER WEST VIRGINIA INC. 256      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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