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: 677

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-677 A Redondo CA LSANCAJWIMD  965H FRACTEL, LLC 730      
424-677 0 Redondo CA   649C ONVOY, LLC - CA 730   2021-08-08   
424-677 1 Redondo CA   649C ONVOY, LLC - CA 730   2021-08-08   
424-677 2 Redondo CA   649C ONVOY, LLC - CA 730   2021-08-08   
424-677 3 Redondo CA   624H ONVOY SPECTRUM, LLC 730   2021-05-24   
424-677 4 Redondo CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2024-08-09   
424-677 5 Redondo CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-08-25   
424-677 6 Redondo CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-08-25   
424-677 7 Redondo CA   965H FRACTEL, LLC 730   2020-07-26   
424-677 8 Redondo CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-08-25   
424-677 9 Redondo CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-08-25   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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