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: 377

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-377 A Avalon CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
424-377 0 Avalon CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2016-04-29   
424-377 1 Avalon CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2016-04-29   
424-377 2 Avalon CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2016-12-04   
424-377 3 Avalon CA   515J IP HORIZON LLC 730   2016-12-31   
424-377 4 Avalon CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2017-03-12   
424-377 5 Avalon CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2017-03-12   
424-377 6 Avalon CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2017-03-12   
424-377 7 Avalon CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2016-04-28   
424-377 8 Avalon CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2016-04-28   
424-377 9 Avalon CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2016-12-02   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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