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: 561

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-561 A Redondo CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730      
424-561 0 Redondo CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2026-01-07   
424-561 1 Redondo CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2026-01-07   
424-561 2 Redondo CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2026-01-07   
424-561 3 Redondo CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2026-01-07   
424-561 4 Redondo CA LSANCARCY1X  321J HD CARRIER LLC 730   2026-05-15   
424-561 5 Redondo CA LSANCARCY1X  321J HD CARRIER LLC 730   2026-05-15   
424-561 6 Redondo CA LSANCARCY1X  321J HD CARRIER LLC 730   2026-05-15   
424-561 8 Redondo CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2026-02-23   
424-561 9 Redondo CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2026-06-15   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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