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: JMTWNDBC25G

Remotes:

Switch Switch name Switch type
VLCYNDBCRS8  VALLEY CITY  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
701-251 A Jamestown ND 9631 QWEST CORPORATION 636      
701-252 A Jamestown ND 9631 QWEST CORPORATION 636      
701-253 A Jamestown ND 9631 QWEST CORPORATION 636      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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