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: 406

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-406 A Compton: Compton DA CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
424-406 0 Compton: Compton DA CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2018-06-01   
424-406 1 Compton: Compton DA CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2018-06-01   
424-406 2 Compton: Compton DA CA   793K TWC IP ENABLED SERVICES, LLC 730   2018-09-21   
424-406 3 Compton: Compton DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2019-02-08   
424-406 4 Compton: Compton DA CA LNBHCAAXDS0  707H INTEGRATED PATH COMMUNICATIONS, LLC - CA 730   2018-06-02   
424-406 5 Compton: Compton DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2019-02-08   
424-406 6 Compton: Compton DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2019-02-08   
424-406 7 Compton: Compton DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2018-12-30   
424-406 8 Compton: Compton DA CA   793K TWC IP ENABLED SERVICES, LLC 730   2018-11-22   
424-406 9 Compton: Compton DA CA   793K TWC IP ENABLED SERVICES, LLC 730   2018-11-22   

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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