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: 337

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-337 A Torrance CA LSANCA03DS7  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
424-337 0 Torrance CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-03-23   
424-337 1 Torrance CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-03-23   
424-337 2 Torrance CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2014-04-03   
424-337 3 Torrance CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2014-05-10   
424-337 4 Torrance CA   515J IP HORIZON LLC 730   2014-03-07   
424-337 5 Torrance CA LSANCA03DS7  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2014-01-16   
424-337 6 Torrance CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2023-01-01   
424-337 7 Torrance CA LSANCAJW2MD  508J CENTURYLINK COMMUNICATIONS, LLC 730   2014-04-09   
424-337 8 Torrance CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2014-05-18   
424-337 9 Torrance CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2014-12-09   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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