Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 510 [Rate centres in NPA 510] [Dial plan for NPA 510]

NXX: 966

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
510-966 A Richmond CA OKLDCA03XKY  624H ONVOY SPECTRUM, LLC 722   2024-09-22   
510-966 0 Richmond CA   649C ONVOY, LLC - CA 722   2025-09-27   
510-966 1 Richmond CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2024-12-10   
510-966 2 Richmond CA   624H ONVOY SPECTRUM, LLC 722   2025-05-16   
510-966 3 Richmond CA   624H ONVOY SPECTRUM, LLC 722   2025-05-16   
510-966 4 Richmond CA   624H ONVOY SPECTRUM, LLC 722   2025-05-16   
510-966 5 Richmond CA OKLDCA03XKY  624H ONVOY SPECTRUM, LLC 722   2024-09-22   
510-966 7 Richmond CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2025-04-21   

Last updated: Sat, 21 Mar 2026 23:53:39 UTC

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