Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
605-317 A Mitchell SD 162G ONVOY, LLC - SD 640   2025-04-11   
605-317 0 Mitchell SD 162G ONVOY, LLC - SD 640   2025-04-11   
605-317 1 Mitchell SD 162G ONVOY, LLC - SD 640   2025-04-11   
605-317 2 Mitchell SD 162G ONVOY, LLC - SD 640   2025-04-11   
605-317 3 Mitchell SD 162G ONVOY, LLC - SD 640   2025-04-11   
605-318 0 Pierre SD 162G ONVOY, LLC - SD 640   2021-06-27   
605-318 3 Pierre SD 162G ONVOY, LLC - SD 640   2020-12-07   
605-318 5 Pierre SD 162G ONVOY, LLC - SD 640   2020-12-07   
605-318 6 Pierre SD 162G ONVOY, LLC - SD 640   2021-06-27   
605-318 7 Pierre SD 162G ONVOY, LLC - SD 640   2021-03-08   
605-318 8 Pierre SD 162G ONVOY, LLC - SD 640   2021-03-08   
605-318 9 Pierre SD 162G ONVOY, LLC - SD 640   2021-03-08   
605-340 A Spearfish SD 162G ONVOY, LLC - SD 640      
605-340 1 Spearfish SD 162G ONVOY, LLC - SD 640   2017-11-04   
605-340 2 Spearfish SD 162G ONVOY, LLC - SD 640   2023-08-20   
605-340 8 Spearfish SD 162G ONVOY, LLC - SD 640   2012-12-15   
605-340 9 Spearfish SD 162G ONVOY, LLC - SD 640   2012-12-15   
605-356 7 Elk Point SD 162G ONVOY, LLC - SD 640   2011-07-05   
605-356 8 Elk Point SD 162G ONVOY, LLC - SD 640   2009-05-28   
605-368 3 Harrisburg-Tea SD 162G ONVOY, LLC - SD 640   2012-12-19   
605-368 6 Harrisburg-Tea SD 162G ONVOY, LLC - SD 640   2008-09-09   
605-368 8 Harrisburg-Tea SD 162G ONVOY, LLC - SD 640   2011-10-28   
605-389 9 Rapid City SD 162G ONVOY, LLC - SD 640   2019-11-26   
605-401 0 Sioux Falls SD 162G ONVOY, LLC - SD 640   2021-07-08   
605-401 2 Sioux Falls SD 162G ONVOY, LLC - SD 640   2021-07-08   
605-401 3 Sioux Falls SD 162G ONVOY, LLC - SD 640   2021-07-08   
605-401 4 Sioux Falls SD 162G ONVOY, LLC - SD 640   2021-07-08   
605-401 8 Sioux Falls SD 162G ONVOY, LLC - SD 640   2022-12-05   
605-405 A Arlington SD 162G ONVOY, LLC - SD 640      
605-405 2 Arlington SD 162G ONVOY, LLC - SD 640   2021-10-31   
605-405 3 Arlington SD 162G ONVOY, LLC - SD 640   2022-01-09   
605-405 5 Arlington SD 162G ONVOY, LLC - SD 640   2021-08-28   
605-405 8 Arlington SD 162G ONVOY, LLC - SD 640   2023-01-02   
605-408 5 Harrisburg-Tea SD 162G ONVOY, LLC - SD 640   2017-11-04   
605-408 7 Harrisburg-Tea SD 162G ONVOY, LLC - SD 640   2013-12-16   
605-408 8 Harrisburg-Tea SD 162G ONVOY, LLC - SD 640   2013-12-16   
605-409 1 Harrisburg-Tea SD 162G ONVOY, LLC - SD 640   2021-07-08   
605-409 3 Harrisburg-Tea SD 162G ONVOY, LLC - SD 640   2021-07-08   
605-409 4 Harrisburg-Tea SD 162G ONVOY, LLC - SD 640   2021-02-12   
605-409 5 Harrisburg-Tea SD 162G ONVOY, LLC - SD 640   2021-02-12   
605-412 7 Huron SD 162G ONVOY, LLC - SD 640   2009-06-01   
605-412 9 Huron SD 162G ONVOY, LLC - SD 640   2012-12-19   
605-423 7 Sturgis SD 162G ONVOY, LLC - SD 640   2011-10-28   
605-443 1 Spearfish SD 162G ONVOY, LLC - SD 640   2021-07-08   
605-443 2 Spearfish SD 162G ONVOY, LLC - SD 640   2021-07-08   
605-443 4 Spearfish SD 162G ONVOY, LLC - SD 640   2020-10-23   
605-443 5 Spearfish SD 162G ONVOY, LLC - SD 640   2020-10-23   
605-443 7 Spearfish SD 162G ONVOY, LLC - SD 640   2013-12-16   
605-443 8 Spearfish SD 162G ONVOY, LLC - SD 640   2013-12-16   
605-450 6 Redfield SD 162G ONVOY, LLC - SD 640   2020-10-23   

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Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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