Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
310-905 5 Santa Monica: Mar Vista DA CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2013-04-05   
310-905 6 Santa Monica: Mar Vista DA CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2013-04-05   
310-905 7 Santa Monica: Mar Vista DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2013-02-28   
310-905 8 Santa Monica: Mar Vista DA CA SNMNCAXPX1Z  506J TWILIO INTERNATIONAL, INC. 730   2014-04-16   
310-905 9 Santa Monica: Mar Vista DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2013-02-28   
310-906 A El Segundo CA LSANCARCY5X  515J IP HORIZON LLC 730      
310-906 0 El Segundo CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2009-08-17   
310-906 1 El Segundo CA   515J IP HORIZON LLC 730      
310-906 2 El Segundo CA   515J IP HORIZON LLC 730      
310-906 3 El Segundo CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2009-09-11   
310-906 4 El Segundo CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2013-01-07   
310-906 5 El Segundo CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2007-01-25   
310-906 6 El Segundo CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2004-11-12   
310-906 7 El Segundo CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2007-01-25   
310-906 8 El Segundo CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2007-01-25   
310-906 9 El Segundo CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2007-01-25   
310-907 A Santa Monica: Santa Monica DA CA ANHMCAHLDS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730      
310-907 0 Santa Monica: Santa Monica DA CA ANHMCAHLDS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730      
310-907 1 Santa Monica: Santa Monica DA CA WLANCA01DS0  7480 PACIFIC BELL (COMPETITIVE) 730   2002-06-21   
310-907 2 Santa Monica: Santa Monica DA CA WLANCA01DS0  7480 PACIFIC BELL (COMPETITIVE) 730   2002-06-26   
310-907 3 Santa Monica: Santa Monica DA CA WLANCA01DS0  7480 PACIFIC BELL (COMPETITIVE) 730   2005-04-18   
310-907 4 Santa Monica: Santa Monica DA CA WLANCA01DS0  7480 PACIFIC BELL (COMPETITIVE) 730   2005-04-18   
310-907 5 Santa Monica: Santa Monica DA CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2003-03-22   
310-907 6 Santa Monica: Santa Monica DA CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2003-08-05   
310-907 7 Santa Monica: Santa Monica DA CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2005-02-05   
310-907 8 Santa Monica: Santa Monica DA CA   515J IP HORIZON LLC 730   2005-02-05   
310-907 9 Santa Monica: Santa Monica DA CA ANHMCAHLDS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730      
310-908 A Inglewood CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
310-909 A West Los Angeles CA BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730      
310-909 0 West Los Angeles CA BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730      
310-909 1 West Los Angeles CA BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730      
310-909 2 West Los Angeles CA BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2004-09-17   
310-909 3 West Los Angeles CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2004-06-18   
310-909 4 West Los Angeles CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2004-06-18   
310-909 5 West Los Angeles CA BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2000-09-26   
310-909 6 West Los Angeles CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2004-06-18   
310-909 7 West Los Angeles CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2004-07-14   
310-909 8 West Los Angeles CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2004-04-16   
310-909 9 West Los Angeles CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2004-11-05   
310-910 A Inglewood CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
310-910 0 Inglewood CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2009-11-06   
310-910 1 Inglewood CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2009-08-17   
310-910 2 Inglewood CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2005-12-21   
310-910 3 Inglewood CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2005-10-13   
310-910 4 Inglewood CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2005-07-06   
310-910 5 Inglewood CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2005-07-21   
310-910 6 Inglewood CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2004-08-16   
310-910 7 Inglewood CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2013-11-18   
310-910 8 Inglewood CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2005-04-02   
310-910 9 Inglewood CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2005-12-08   
310-912 A Inglewood CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
310-912 0 Inglewood CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2011-10-07   
310-912 1 Inglewood CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2011-11-06   
310-912 2 Inglewood CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2011-10-07   
310-912 3 Inglewood CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2011-10-10   
310-912 4 Inglewood CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2011-10-07   
310-912 5 Inglewood CA TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730   2012-06-22   
310-912 6 Inglewood CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-07-05   
310-912 7 Inglewood CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2012-06-19   
310-912 8 Inglewood CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2012-06-20   
310-912 9 Inglewood CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2012-07-28   
310-913 A Santa Monica: Mar Vista DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
310-913 0 Santa Monica: Mar Vista DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
310-913 1 Santa Monica: Mar Vista DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
310-913 2 Santa Monica: Mar Vista DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
310-913 3 Santa Monica: Mar Vista DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
310-913 4 Santa Monica: Mar Vista DA CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2006-07-17   
310-913 5 Santa Monica: Mar Vista DA CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2006-07-17   
310-913 6 Santa Monica: Mar Vista DA CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2006-12-29   
310-913 7 Santa Monica: Mar Vista DA CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2006-07-17   
310-913 8 Santa Monica: Mar Vista DA CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2006-07-17   
310-913 9 Santa Monica: Mar Vista DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
310-914 A West Los Angeles CA WLANCAXFDS1  2319 FRONTIER CALIFORNIA INC. 730      
310-915 A Santa Monica: Mar Vista DA CA CLCYCAXG39K  2319 FRONTIER CALIFORNIA INC. 730      
310-916 A Culver City CA ONTRCAFXDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 730      
310-916 0 Culver City CA ONTRCAFXDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 730      
310-916 1 Culver City CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2003-07-05   
310-916 2 Culver City CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2003-07-05   
310-916 3 Culver City CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2003-07-05   
310-916 4 Culver City CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2003-07-05   
310-916 5 Culver City CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2003-07-05   
310-916 6 Culver City CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2003-07-02   
310-916 7 Culver City CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2004-04-05   
310-916 8 Culver City CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2004-04-05   
310-916 9 Culver City CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-02-26   
310-917 A Santa Monica: Santa Monica DA CA SNMNCAXGDS0  2319 FRONTIER CALIFORNIA INC. 730      
310-918 A Compton: Gardena DA CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
310-919 A Malibu CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2024-01-23   
310-919 0 Malibu CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730      
310-919 1 Malibu CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730      
310-919 2 Malibu CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730      
310-919 3 Malibu CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730      
310-919 4 Malibu CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2013-03-03   
310-919 5 Malibu CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-11-25   
310-919 6 Malibu CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2013-06-13   
310-919 7 Malibu CA TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730   2002-12-24   
310-919 8 Malibu CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2002-12-24   
310-919 9 Malibu CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2002-12-24   
310-920 A Compton: Gardena DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
310-921 A Redondo CA RDBHCAXF37K  2319 FRONTIER CALIFORNIA INC. 730      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 >>

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.