Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 310 [Rate centres in NPA 310] [Dial plan for NPA 310]

NXX: 307

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
310-307 A West Los Angeles CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      
310-307 0 West Los Angeles CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2013-01-10   
310-307 1 West Los Angeles CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2013-01-10   
310-307 2 West Los Angeles CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2013-01-10   
310-307 3 West Los Angeles CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2013-01-07   
310-307 4 West Los Angeles CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2013-01-12   
310-307 5 West Los Angeles CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2013-02-04   
310-307 6 West Los Angeles CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2013-07-18   
310-307 7 West Los Angeles CA LSANCAJW2MD  508J CENTURYLINK COMMUNICATIONS, LLC 730   2013-03-15   
310-307 8 West Los Angeles CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2013-10-22   
310-307 9 West Los Angeles CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2012-11-23   

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

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