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: 780

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-780 A Hawthorne CA LSANCA03GMD  624H ONVOY SPECTRUM, LLC 730   2025-01-02   
424-780 0 Hawthorne CA   649C ONVOY, LLC - CA 730   2026-03-30   
424-780 4 Hawthorne CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-01-03   
424-780 5 Hawthorne CA LSANCA03GMD  624H ONVOY SPECTRUM, LLC 730   2025-01-02   
424-780 6 Hawthorne CA LSANCA03GMD  624H ONVOY SPECTRUM, LLC 730   2025-01-02   
424-780 7 Hawthorne CA LSANCA03GMD  624H ONVOY SPECTRUM, LLC 730   2025-01-02   
424-780 8 Hawthorne CA LSANCA03GMD  624H ONVOY SPECTRUM, LLC 730   2025-01-02   
424-780 9 Hawthorne CA LSANCA03GMD  624H ONVOY SPECTRUM, LLC 730   2025-01-02   

Last updated: Sat, 02 May 2026 12:20:53 UTC

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