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: BLFRSDCORS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
307-896 A West Belle Fourche WY 9631 QWEST CORPORATION 640      
605-892 A Belle Fourche SD 9631 QWEST CORPORATION 640      
605-892 0 Belle Fourche SD 9631 QWEST CORPORATION 640      
605-892 1 Belle Fourche SD 9631 QWEST CORPORATION 640      
605-892 2 Belle Fourche SD 9631 QWEST CORPORATION 640      
605-892 3 Belle Fourche SD 9631 QWEST CORPORATION 640      
605-892 4 Belle Fourche SD 9631 QWEST CORPORATION 640      
605-892 6 Belle Fourche SD 9631 QWEST CORPORATION 640      
605-892 7 Belle Fourche SD 9631 QWEST CORPORATION 640      
605-892 9 Belle Fourche SD 9631 QWEST CORPORATION 640      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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