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: SNMNCAXPX3Z

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
820-822 3 Oxnard CA 649C ONVOY, LLC - CA 730   2023-08-10   
820-822 4 Oxnard CA 649C ONVOY, LLC - CA 730   2023-08-10   
820-822 5 Oxnard CA 649C ONVOY, LLC - CA 730   2023-08-10   
820-822 6 Oxnard CA 649C ONVOY, LLC - CA 730   2023-08-10   
820-822 7 Oxnard CA 649C ONVOY, LLC - CA 730   2023-08-10   
820-822 8 Oxnard CA 649C ONVOY, LLC - CA 730   2023-08-10   
820-822 9 Oxnard CA 649C ONVOY, LLC - CA 730   2023-08-10   
820-999 2 Oxnard CA 649C ONVOY, LLC - CA 730   2020-07-10   
820-999 3 Oxnard CA 649C ONVOY, LLC - CA 730   2020-07-10   
820-999 4 Oxnard CA 649C ONVOY, LLC - CA 730   2023-08-10   
820-999 5 Oxnard CA 649C ONVOY, LLC - CA 730   2023-08-10   
820-999 6 Oxnard CA 649C ONVOY, LLC - CA 730   2023-08-10   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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