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: 304

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-304 A Redondo CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2024-01-23   
424-304 0 Redondo CA   649C ONVOY, LLC - CA 730   2016-02-25   
424-304 1 Redondo CA   649C ONVOY, LLC - CA 730   2016-02-25   
424-304 2 Redondo CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2016-05-20   
424-304 3 Redondo CA   321J HD CARRIER LLC 730   2016-06-02   
424-304 4 Redondo CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-04-25   
424-304 5 Redondo CA   321J HD CARRIER LLC 730   2016-06-02   
424-304 6 Redondo CA   321J HD CARRIER LLC 730   2016-06-02   
424-304 7 Redondo CA   321J HD CARRIER LLC 730   2016-06-02   
424-304 8 Redondo CA   321J HD CARRIER LLC 730   2016-06-02   
424-304 9 Redondo CA   321J HD CARRIER LLC 730   2016-08-27   

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

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