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: 563

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-563 A Hawthorne CA   649C ONVOY, LLC - CA 730   2026-03-23   
424-563 0 Hawthorne CA   649C ONVOY, LLC - CA 730   2026-03-23   

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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