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: CDCYUTMADS0

Remotes:

Switch Switch name Switch type
BEVRUTMARS1  BEAVER  RSC 
BNHDUTMARS2  BRIANHEAD  RSC 
PRWNUTMARS1  PAROWAN  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
435-586 A Cedar City UT 9636 QWEST CORPORATION 660      
435-865 A Cedar City UT 9636 QWEST CORPORATION 660      
435-867 A Cedar City UT 9636 QWEST CORPORATION 660      
435-868 A Cedar City UT 9636 QWEST CORPORATION 660      
435-868 5 Cedar City UT 9636 QWEST CORPORATION 660      
435-868 6 Cedar City UT 9636 QWEST CORPORATION 660   2010-12-20   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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