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: 452

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-452 A Redondo CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2024-01-23   
424-452 0 Redondo CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2016-07-16   
424-452 1 Redondo CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2016-07-16   
424-452 2 Redondo CA   649C ONVOY, LLC - CA 730   2016-03-03   
424-452 3 Redondo CA   321J HD CARRIER LLC 730   2016-08-27   
424-452 4 Redondo CA   321J HD CARRIER LLC 730   2016-08-27   
424-452 5 Redondo CA   321J HD CARRIER LLC 730   2016-08-27   
424-452 6 Redondo CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2016-07-20   
424-452 7 Redondo CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2017-04-11   
424-452 8 Redondo CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2017-04-11   
424-452 9 Redondo CA   073H TELNYX LLC 730   2017-06-02   

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

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