Local Calling Guide

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

NXX: 507

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
310-507 A San Pedro CA IRVECAEIDS2  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 730      
310-507 0 San Pedro CA IRVECAEIDS2  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 730      
310-507 1 San Pedro CA IRVECAEIDS2  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 730      
310-507 2 San Pedro CA BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2004-09-30   
310-507 3 San Pedro CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2003-06-05   
310-507 4 San Pedro CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2004-05-09   
310-507 5 San Pedro CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2004-05-01   
310-507 6 San Pedro CA LSANCA03DS7  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2004-09-14   
310-507 7 San Pedro CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2011-12-24   
310-507 8 San Pedro CA IRVECAEIDS2  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 730      
310-507 9 San Pedro CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-11-25   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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