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: 823

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
820-823 A Santa Ynez CA SNBBCAXFXVY  649C ONVOY, LLC - CA 740      
820-823 0 Santa Ynez CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 740   2023-04-10   
820-823 1 Santa Ynez CA   6529 T-MOBILE USA, INC. 740   2024-06-26   
820-823 2 Santa Ynez CA   649C ONVOY, LLC - CA 740   2023-11-03   
820-823 3 Santa Ynez CA   649C ONVOY, LLC - CA 740   2023-11-03   
820-823 4 Santa Ynez CA   649C ONVOY, LLC - CA 740   2023-11-03   
820-823 5 Santa Ynez CA   649C ONVOY, LLC - CA 740   2023-11-03   
820-823 6 Santa Ynez CA   649C ONVOY, LLC - CA 740   2023-11-03   
820-823 7 Santa Ynez CA   649C ONVOY, LLC - CA 740   2024-03-02   
820-823 8 Santa Ynez CA   649C ONVOY, LLC - CA 740   2023-04-06   
820-823 9 Santa Ynez CA   6010 NEW CINGULAR WIRELESS PCS, LLC 740   2023-06-30   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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