Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 424 [Rate centres in NPA 424] [Dial plan for NPA 424]

NXX: 660

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-660 A Santa Monica: Mar Vista DA CA SNMNCAXPX2Z  624H ONVOY SPECTRUM, LLC 730   2025-01-02   
424-660 0 Santa Monica: Mar Vista DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-01-03   
424-660 1 Santa Monica: Mar Vista DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-03-23   
424-660 2 Santa Monica: Mar Vista DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-05-11   
424-660 3 Santa Monica: Mar Vista DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-07-11   
424-660 4 Santa Monica: Mar Vista DA CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-03-29   
424-660 5 Santa Monica: Mar Vista DA CA SNMNCAXPX2Z  624H ONVOY SPECTRUM, LLC 730   2025-01-02   
424-660 6 Santa Monica: Mar Vista DA CA SNMNCAXPX2Z  624H ONVOY SPECTRUM, LLC 730   2025-01-02   
424-660 7 Santa Monica: Mar Vista DA CA SNMNCAXPX2Z  624H ONVOY SPECTRUM, LLC 730   2025-01-02   
424-660 8 Santa Monica: Mar Vista DA CA SNMNCAXPX2Z  624H ONVOY SPECTRUM, LLC 730   2025-01-02   
424-660 9 Santa Monica: Mar Vista DA CA SNMNCAXPX2Z  624H ONVOY SPECTRUM, LLC 730   2025-01-02   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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