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: SXFLSDCOX1X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
605-291 8 Madison SD 073H TELNYX LLC 640      
605-401 5 Sioux Falls SD 073H TELNYX LLC 640      
605-405 0 Arlington SD 073H TELNYX LLC 640      
605-549 8 Spearfish SD 073H TELNYX LLC 640      
605-581 0 Mobridge SD 073H TELNYX LLC 640      
605-601 8 Sioux Falls SD 073H TELNYX LLC 640      
605-601 9 Sioux Falls SD 073H TELNYX LLC 640      
605-621 0 Madison SD 073H TELNYX LLC 640      
605-808 9 Redfield SD 073H TELNYX LLC 640      
605-898 0 Iroquois SD 073H TELNYX LLC 640      
605-952 1 Elk Point SD 073H TELNYX LLC 640      
605-998 0 Miller SD 073H TELNYX LLC 640      
712-888 A Beloit IA 073H TELNYX LLC 640      
712-888 8 Beloit IA 073H TELNYX LLC 640      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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