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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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
605-983 8 Arlington SD 162G ONVOY, LLC - SD 640   2009-05-28   
605-987 8 Canton SD 162G ONVOY, LLC - SD 640   2011-10-28   
605-991 0 Milbank SD 162G ONVOY, LLC - SD 640   2021-07-08   
605-997 0 Flandreau SD 162G ONVOY, LLC - SD 640   2021-04-02   
605-997 1 Flandreau SD 162G ONVOY, LLC - SD 640   2021-04-02   
605-997 6 Flandreau SD 162G ONVOY, LLC - SD 640   2009-05-28   
605-998 A Miller SD 162G ONVOY, LLC - SD 640      
605-998 7 Miller SD 162G ONVOY, LLC - SD 640   2021-09-28   
605-998 8 Miller SD 162G ONVOY, LLC - SD 640   2021-09-27   
605-998 9 Miller SD 162G ONVOY, LLC - SD 640   2021-09-27   
701-503 3 North McIntosh ND 452F ONVOY, LLC - ND 640   2021-06-13   
701-503 4 North McIntosh ND 452F ONVOY, LLC - ND 640   2021-02-12   
701-503 5 North McIntosh ND 452F ONVOY, LLC - ND 640   2021-02-12   
701-815 5 North McIntosh ND 452F ONVOY, LLC - ND 640   2019-09-06   
701-815 7 North McIntosh ND 452F ONVOY, LLC - ND 640   2015-03-19   
701-815 8 North McIntosh ND 452F ONVOY, LLC - ND 640   2019-09-06   
701-937 A North Morristown ND 452F ONVOY, LLC - ND 640      
701-937 0 North Morristown ND 452F ONVOY, LLC - ND 640   2017-05-19   
701-937 2 North Morristown ND 452F ONVOY, LLC - ND 640   2019-09-06   
701-937 3 North Morristown ND 452F ONVOY, LLC - ND 640   2019-09-06   
701-937 4 North Morristown ND 452F ONVOY, LLC - ND 640   2021-02-12   
701-937 5 North Morristown ND 452F ONVOY, LLC - ND 640   2021-02-12   
701-937 6 North Morristown ND 452F ONVOY, LLC - ND 640   2021-07-08   
712-746 0 East Harrisburg IA 221F ONVOY, LLC - IA 640   2016-07-18   
712-746 6 East Harrisburg IA 221F ONVOY, LLC - IA 640   2014-09-12   
712-746 8 East Harrisburg IA 221F ONVOY, LLC - IA 640   2019-09-20   
712-746 9 East Harrisburg IA 221F ONVOY, LLC - IA 640   2019-09-20   
712-888 1 Beloit IA 221F ONVOY, LLC - IA 640   2019-09-20   
712-888 2 Beloit IA 221F ONVOY, LLC - IA 640   2019-09-20   
712-986 7 Beloit IA 221F ONVOY, LLC - IA 640   2014-09-12   
712-986 8 Beloit IA 221F ONVOY, LLC - IA 640   2021-05-10   

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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