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: ELPNSDCORS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
605-356 A Elk Point SD 9631 QWEST CORPORATION 640      
605-356 0 Elk Point SD 9631 QWEST CORPORATION 640      
605-356 1 Elk Point SD 9631 QWEST CORPORATION 640      
605-356 2 Elk Point SD 9631 QWEST CORPORATION 640      
605-356 3 Elk Point SD 9631 QWEST CORPORATION 640      
605-356 4 Elk Point SD 9631 QWEST CORPORATION 640      
605-356 5 Elk Point SD 9631 QWEST CORPORATION 640      
605-356 9 Elk Point SD 9631 QWEST CORPORATION 640      

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

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