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 80 81 82 83 84 85 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-722 4 Santa Monica: Santa Monica DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2021-11-27   
424-722 5 Santa Monica: Santa Monica DA CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2021-11-16   
424-722 6 Santa Monica: Santa Monica DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2021-11-16   
424-722 7 Santa Monica: Santa Monica DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2021-11-16   
424-722 8 Santa Monica: Santa Monica DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2021-11-16   
424-722 9 Santa Monica: Santa Monica DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2021-11-16   
424-724 A Compton: Compton DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
424-724 2 Compton: Compton DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2023-01-06   
424-724 3 Compton: Compton DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2023-01-06   
424-724 4 Compton: Compton DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2023-01-06   
424-724 5 Compton: Compton DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2023-01-06   
424-724 6 Compton: Compton DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2023-01-06   
424-724 7 Compton: Compton DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2023-01-06   
424-728 A Compton: Gardena DA CA LSANCAJWJMD  516J TON80 COMMUNICATIONS, LLC 730      
424-728 1 Compton: Gardena DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2022-10-17   
424-728 2 Compton: Gardena DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2022-10-17   
424-728 3 Compton: Gardena DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2022-10-17   
424-728 4 Compton: Gardena DA CA LSANCA03GMD  624H ONVOY SPECTRUM, LLC 730   2022-08-13   
424-728 5 Compton: Gardena DA CA LSANCA03GMD  624H ONVOY SPECTRUM, LLC 730   2022-08-13   
424-728 6 Compton: Gardena DA CA GRDNCA02KMD  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2022-03-11   
424-728 7 Compton: Gardena DA CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2022-06-10   
424-728 8 Compton: Gardena DA CA LSANCAJWJMD  516J TON80 COMMUNICATIONS, LLC 730   2022-03-10   
424-728 9 Compton: Gardena DA CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2022-03-11   
424-731 A Torrance CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
424-731 0 Torrance CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2006-09-08   
424-731 1 Torrance CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2007-06-25   
424-731 2 Torrance CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2006-09-08   
424-731 3 Torrance CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2007-10-16   
424-731 4 Torrance CA LSANCA03DS7  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2007-07-16   
424-731 5 Torrance CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2013-05-30   
424-731 6 Torrance CA TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730   2008-09-04   
424-731 7 Torrance CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2008-12-19   
424-731 8 Torrance CA LSANCA54ZMD  8690 GLOBAL CROSSING LOCAL SERVICES, INC. - CA 730   2006-11-12   
424-731 9 Torrance CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2006-10-26   
424-732 A Inglewood CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
424-732 0 Inglewood CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-12-30   
424-732 1 Inglewood CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-12-30   
424-732 2 Inglewood CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-12-30   
424-732 3 Inglewood CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2012-12-07   
424-732 4 Inglewood CA LSANCAJW2MD  508J CENTURYLINK COMMUNICATIONS, LLC 730   2013-03-18   
424-732 5 Inglewood CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2019-04-22   
424-732 6 Inglewood CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2013-03-17   
424-732 7 Inglewood CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2013-07-27   
424-732 8 Inglewood CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2013-05-25   
424-732 9 Inglewood CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2013-05-25   
424-738 A Avalon CA ANHMCA01XEY  516C AT&T CORP. 730      
424-738 0 Avalon CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-01-09   
424-738 1 Avalon CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-05-27   
424-738 2 Avalon CA LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730   2012-06-23   
424-738 3 Avalon CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2012-06-16   

<< 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 80 81 82 83 84 85 >>

Last updated: Tue, 30 May 2023 01:08:39 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.