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: WTTWSDCODS0

Remotes:

Switch Switch name Switch type
RDFDSDCORS1  REDFIELD  5ER 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
605-882 A Watertown SD 9631 QWEST CORPORATION 640      
605-884 A Watertown SD 9631 QWEST CORPORATION 640      
605-884 0 Watertown SD 9631 QWEST CORPORATION 640      
605-884 1 Watertown SD 9631 QWEST CORPORATION 640      
605-884 2 Watertown SD 9631 QWEST CORPORATION 640      
605-884 3 Watertown SD 9631 QWEST CORPORATION 640      
605-884 4 Watertown SD 9631 QWEST CORPORATION 640      
605-884 8 Watertown SD 9631 QWEST CORPORATION 640      
605-886 A Watertown SD 9631 QWEST CORPORATION 640      

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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