Local Calling Guide

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

NXX: 531

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
310-531 A Hawthorne CA LSANCA03DS7  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
310-531 0 Hawthorne CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2004-01-10   
310-531 1 Hawthorne CA IRVECAJTDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 730   2000-04-10   
310-531 2 Hawthorne CA ANHMCANG2MD  4733 PAETEC COMMUNICATIONS, INC. - CA 730   2002-04-15   
310-531 3 Hawthorne CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2004-05-31   
310-531 4 Hawthorne CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2004-05-31   
310-531 5 Hawthorne CA LSANCA03DS7  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2009-03-09   
310-531 6 Hawthorne CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2004-09-10   
310-531 7 Hawthorne CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2001-05-30   
310-531 8 Hawthorne CA BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2000-07-15   
310-531 9 Hawthorne CA LSANCA03DS7  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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