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: 424 [Rate centres in NPA 424] [Dial plan for NPA 424]

<< 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 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-766 7 Santa Monica: Mar Vista DA CA LSANCA03JMD  506J TWILIO INTERNATIONAL INC 730   2020-10-20   
424-766 8 Santa Monica: Mar Vista DA CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2021-04-01   
424-766 9 Santa Monica: Mar Vista DA CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2021-04-01   
424-768 A Compton: Compton DA CA   516J TON80 COMMUNICATIONS LLC 730   2022-03-12   
424-768 7 Compton: Compton DA CA   516J TON80 COMMUNICATIONS LLC 730   2022-03-12   
424-772 A San Pedro CA ALVJCABBDS0  7661 COX CALIFORNIA TELCOM, L.L.C. - CA 730      
424-772 0 San Pedro CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-11-25   
424-772 1 San Pedro CA ALVJCABBDS0  7661 COX CALIFORNIA TELCOM, L.L.C. - CA 730   2009-03-11   
424-772 2 San Pedro CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-03-06   
424-772 3 San Pedro CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2006-12-06   
424-772 4 San Pedro CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2006-12-06   
424-772 5 San Pedro CA LSANCAGJDS4  7453 US TELEPACIFIC CORP. - CA 730   2013-09-19   
424-772 6 San Pedro CA ALVJCABBDS0  7661 COX CALIFORNIA TELCOM, L.L.C. - CA 730   2006-08-26   
424-772 7 San Pedro CA LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730   2006-08-28   
424-772 8 San Pedro CA IRVNCAAG8MD  6664 SPRINT SPECTRUM, L.P. 730   2006-08-29   
424-772 9 San Pedro CA IRVNCAAG8MD  6664 SPRINT SPECTRUM, L.P. 730   2006-08-29   
424-777 A Beverly Hills CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
424-777 0 Beverly Hills CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2011-01-10   
424-777 1 Beverly Hills CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2019-04-20   
424-777 2 Beverly Hills CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-10-28   
424-777 3 Beverly Hills CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-10-28   
424-777 4 Beverly Hills CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2010-10-20   
424-777 5 Beverly Hills CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2011-02-02   
424-777 6 Beverly Hills CA LSANCAJWDS5  258E YMAX COMMUNICATIONS CORP. - CA 730   2010-10-27   
424-777 7 Beverly Hills CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-08-21   
424-777 8 Beverly Hills CA LSANCAJWDS5  258E YMAX COMMUNICATIONS CORP. - CA 730   2010-10-27   
424-777 9 Beverly Hills CA LSANCAJWDS5  258E YMAX COMMUNICATIONS CORP. - CA 730   2010-10-27   
424-781 A Malibu CA LSANCAJWDS5  258E YMAX COMMUNICATIONS CORP. - CA 730      
424-781 0 Malibu CA LSANCAJWDS5  258E YMAX COMMUNICATIONS CORP. - CA 730   2007-03-09   
424-781 1 Malibu CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2007-03-04   
424-781 2 Malibu CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2017-11-20   
424-781 3 Malibu CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2011-08-14   
424-781 4 Malibu CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-11-25   
424-781 5 Malibu CA LSANCAJWDS5  258E YMAX COMMUNICATIONS CORP. - CA 730   2007-03-09   
424-781 6 Malibu CA LSANCAJWDS5  258E YMAX COMMUNICATIONS CORP. - CA 730   2007-03-09   
424-781 7 Malibu CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-05-22   
424-781 8 Malibu CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-05-22   
424-781 9 Malibu CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-12-08   
424-785 A Compton: Compton DA CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
424-785 0 Compton: Compton DA CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2007-09-04   
424-785 1 Compton: Compton DA CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2007-09-04   
424-785 2 Compton: Compton DA CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2007-09-04   
424-785 3 Compton: Compton DA CA LSANCAJWDS5  258E YMAX COMMUNICATIONS CORP. - CA 730   2011-04-25   
424-785 4 Compton: Compton DA CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-02-27   
424-785 5 Compton: Compton DA CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2008-01-18   
424-785 6 Compton: Compton DA CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2008-01-18   
424-785 7 Compton: Compton DA CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2007-03-13   
424-785 8 Compton: Compton DA CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2007-04-13   
424-785 9 Compton: Compton DA CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2006-12-30   
424-786 A Malibu CA LSANCAJWIMD  965H FRACTEL LLC 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 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 >>

Last updated: Wed, 12 Jan 2022 16:20:07 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.