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: HMTNOR56DS0

Remotes:

Switch Switch name Switch type
STFDOR56RS0  STANFIELD  RSC 
UMTLOR57RS0  UMATILLA  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
541-564 A Hermiston OR 9638 QWEST CORPORATION 672      
541-567 A Hermiston OR 9638 QWEST CORPORATION 672      
541-667 A Hermiston OR 9638 QWEST CORPORATION 672      

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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