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.
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Switch: SXFLSDPS5MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
605-303 3 Watertown SD 145J TERRA NOVA TELECOM INC. 640   2021-01-26   
605-468 6 Redfield SD 145J TERRA NOVA TELECOM INC. 640   2021-01-26   
605-499 6 Sturgis SD 145J TERRA NOVA TELECOM INC. 640   2021-01-26   
605-522 2 Yankton SD 145J TERRA NOVA TELECOM INC. 640   2021-08-15   
605-663 6 Huron SD 145J TERRA NOVA TELECOM INC. 640   2021-05-23   
605-670 5 Vermillion SD 145J TERRA NOVA TELECOM INC. 640   2021-11-04   
605-699 9 Belle Fourche SD 145J TERRA NOVA TELECOM INC. 640   2020-11-14   
605-800 A Sioux Falls SD 145J TERRA NOVA TELECOM INC. 640      
605-800 0 Sioux Falls SD 145J TERRA NOVA TELECOM INC. 640   2019-02-10   
605-853 1 Miller SD 145J TERRA NOVA TELECOM INC. 640   2020-11-14   
605-860 6 De Smet SD 145J TERRA NOVA TELECOM INC. 640   2021-01-26   
605-863 8 Rapid City SD 145J TERRA NOVA TELECOM INC. 640   2021-01-26   
605-933 3 Mitchell SD 145J TERRA NOVA TELECOM INC. 640   2020-11-14   
605-991 9 Milbank SD 145J TERRA NOVA TELECOM INC. 640   2021-05-23   
605-997 9 Flandreau SD 145J TERRA NOVA TELECOM INC. 640   2020-11-14   
712-888 9 Beloit IA 145J TERRA NOVA TELECOM INC. 640   2021-01-14   

Last updated: Thu, 04 Aug 2022 23:14:42 UTC

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