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: 376

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-376 A Torrance CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
424-376 0 Torrance CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2014-12-16   
424-376 1 Torrance CA   899D METROPCS NETWORKS, LLC 730   2018-11-04   
424-376 2 Torrance CA   899D METROPCS NETWORKS, LLC 730   2014-12-29   
424-376 3 Torrance CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2019-06-14   
424-376 4 Torrance CA   6529 T-MOBILE USA, INC. 730   2015-08-29   
424-376 5 Torrance CA   516C AT&T CORP. 730   2015-05-26   
424-376 6 Torrance CA   6529 T-MOBILE USA, INC. 730   2015-07-04   
424-376 7 Torrance CA   6529 T-MOBILE USA, INC. 730   2015-03-30   
424-376 8 Torrance CA   6529 T-MOBILE USA, INC. 730   2014-12-13   
424-376 9 Torrance CA   6529 T-MOBILE USA, INC. 730   2014-12-13   

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

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