Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 820 [Rate centres in NPA 820] [Dial plan for NPA 820]

NXX: 356

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
820-356 A Point Mugu CA LSANCAJWIMD  965H FRACTEL, LLC 730      
820-356 0 Point Mugu CA   649C ONVOY, LLC - CA 730   2021-07-28   
820-356 1 Point Mugu CA   649C ONVOY, LLC - CA 730   2021-07-28   
820-356 2 Point Mugu CA   649C ONVOY, LLC - CA 730   2021-07-28   
820-356 3 Point Mugu CA   649C ONVOY, LLC - CA 730   2021-07-28   
820-356 4 Point Mugu CA   649C ONVOY, LLC - CA 730   2022-12-16   
820-356 5 Point Mugu CA   649C ONVOY, LLC - CA 730   2023-10-30   
820-356 6 Point Mugu CA   516J TON80 COMMUNICATIONS, LLC 730   2021-10-15   
820-356 7 Point Mugu CA   965H FRACTEL, LLC 730   2021-05-13   
820-356 8 Point Mugu CA   649C ONVOY, LLC - CA 730   2023-10-30   
820-356 9 Point Mugu CA   965H FRACTEL, LLC 730   2021-03-14   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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