Local Calling Guide

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NPA: 310 [Rate centres in NPA 310] [Dial plan for NPA 310]

NXX: 404

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
310-404 A Compton: Gardena DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
310-404 0 Compton: Gardena DA CA ONTRCAFXDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 730   2000-04-10   
310-404 1 Compton: Gardena DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2002-12-13   
310-404 2 Compton: Gardena DA CA GRDNCA02KMD  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
310-404 3 Compton: Gardena DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2002-12-13   
310-404 4 Compton: Gardena DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2002-12-13   
310-404 5 Compton: Gardena DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2002-12-13   
310-404 6 Compton: Gardena DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2004-08-02   
310-404 7 Compton: Gardena DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2002-12-13   
310-404 8 Compton: Gardena DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2005-05-28   
310-404 9 Compton: Gardena DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2005-04-16   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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