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: 820 [Rate centres in NPA 820] [Dial plan for NPA 820]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
820-333 A Thousand Oaks CA   965H FRACTEL, LLC 730   2019-03-21   
820-333 2 Thousand Oaks CA   649C ONVOY, LLC - CA 730   2019-09-09   
820-333 3 Thousand Oaks CA   965H FRACTEL, LLC 730   2019-03-21   
820-333 4 Thousand Oaks CA   649C ONVOY, LLC - CA 730   2019-09-09   
820-333 6 Thousand Oaks CA   7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730   2019-03-22   
820-333 7 Thousand Oaks CA   7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730   2019-04-13   
820-333 8 Thousand Oaks CA   7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730   2019-04-13   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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