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: 201

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-201 A Torrance CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
424-201 0 Torrance CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2007-10-02   
424-201 1 Torrance CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2007-12-04   
424-201 2 Torrance CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2008-03-26   
424-201 3 Torrance CA ANHMCANG2MD  4733 PAETEC COMMUNICATIONS, INC. - CA 730   2007-01-15   
424-201 4 Torrance CA BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2007-04-27   
424-201 5 Torrance CA BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2007-04-27   
424-201 6 Torrance CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2007-03-10   
424-201 7 Torrance CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2007-03-10   
424-201 8 Torrance CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2007-03-10   
424-201 9 Torrance CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2007-05-19   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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