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: WFRGNDBC28G

Remotes:

Switch Switch name Switch type
CMSTMNCORS6  COMSTOCK  RSC 
GRNRNDBCRS4  GARDNER  RSC 
SABNMNSARS7  SABIN  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
701-277 A Fargo ND 9631 QWEST CORPORATION 636      
701-281 A Fargo ND 9631 QWEST CORPORATION 636      
701-282 A Fargo ND 9631 QWEST CORPORATION 636      
701-433 0 Fargo ND 9631 QWEST CORPORATION 636      
701-433 3 Fargo ND 9631 QWEST CORPORATION 636      
701-433 4 Fargo ND 9631 QWEST CORPORATION 636      
701-433 5 Fargo ND 9631 QWEST CORPORATION 636      
701-433 6 Fargo ND 9631 QWEST CORPORATION 636      
701-433 7 Fargo ND 9631 QWEST CORPORATION 636      
701-433 8 Fargo ND 9631 QWEST CORPORATION 636      
701-492 A Fargo ND 9631 QWEST CORPORATION 636      
701-552 8 Fargo ND 9631 QWEST CORPORATION 636   2010-08-18   
701-715 9 Fargo ND 9631 QWEST CORPORATION 636   2013-09-25   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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