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: 509

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-509 A Inglewood CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2024-05-04   
424-509 0 Inglewood CA   649C ONVOY, LLC - CA 730   2024-05-04   
424-509 1 Inglewood CA   649C ONVOY, LLC - CA 730   2024-05-06   
424-509 2 Inglewood CA   649C ONVOY, LLC - CA 730   2024-05-06   
424-509 3 Inglewood CA   6529 T-MOBILE USA, INC. 730   2024-05-22   
424-509 4 Inglewood CA   6529 T-MOBILE USA, INC. 730   2024-05-22   
424-509 5 Inglewood CA   6529 T-MOBILE USA, INC. 730   2024-05-22   
424-509 6 Inglewood CA   6529 T-MOBILE USA, INC. 730   2024-05-22   
424-509 7 Inglewood CA   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2025-05-09   
424-509 8 Inglewood CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-05-05   
424-509 9 Inglewood CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-05-05   

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

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