Local Calling Guide

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

NXX: 800

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
310-800 A Compton: Gardena DA CA IRVECAEIDS2  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 730      
310-800 0 Compton: Gardena DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2002-12-14   
310-800 1 Compton: Gardena DA CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-06-22   
310-800 2 Compton: Gardena DA CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-06-22   
310-800 3 Compton: Gardena DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2002-12-14   
310-800 4 Compton: Gardena DA CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2006-01-23   
310-800 5 Compton: Gardena DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2002-12-14   
310-800 6 Compton: Gardena DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2002-12-14   
310-800 7 Compton: Gardena DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2002-12-14   
310-800 8 Compton: Gardena DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2002-12-14   
310-800 9 Compton: Gardena DA CA IRVECAEIDS2  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 730      

Last updated: Sun, 17 May 2026 03:26:51 UTC

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