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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-432 0 Avalon CA LSANCAJW6MD  073H TELNYX LLC 730   2019-09-16   
424-432 1 Avalon CA LSANCARCY2X  597F VOIP INNOVATIONS LLC 730   2019-09-15   
424-432 2 Avalon CA   649C ONVOY, LLC - CA 730   2021-07-12   
424-432 3 Avalon CA   624H ONVOY SPECTRUM, LLC 730   2021-07-19   
424-432 4 Avalon CA LSANCA03JMD  506J TWILIO INTERNATIONAL INC 730   2020-10-20   
424-432 5 Avalon CA   649C ONVOY, LLC - CA 730   2021-08-08   
424-432 6 Avalon CA   624H ONVOY SPECTRUM, LLC 730   2021-11-07   
424-432 7 Avalon CA   624H ONVOY SPECTRUM, LLC 730   2021-11-07   
424-432 8 Avalon CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2021-11-20   
424-432 9 Avalon CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2021-02-15   
424-433 A Santa Monica: Santa Monica DA CA SNMNCAXPXJY  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730      
424-433 0 Santa Monica: Santa Monica DA CA TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730   2017-10-07   
424-433 1 Santa Monica: Santa Monica DA CA LSANCARCD4S  973E RACE TELECOMMUNICATIONS, INC. - CA 730   2016-11-19   
424-433 2 Santa Monica: Santa Monica DA CA TUSTCAFTDS0  320H VODEX COMMUNICATIONS CORPORATION - CA 730   2017-09-08   
424-433 3 Santa Monica: Santa Monica DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2016-12-16   
424-433 4 Santa Monica: Santa Monica DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2016-12-16   
424-433 5 Santa Monica: Santa Monica DA CA SNMNCAXPXPY  886G RCLEC, INC. - CA 730   2017-01-05   
424-433 6 Santa Monica: Santa Monica DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2017-06-09   
424-433 7 Santa Monica: Santa Monica DA CA   508J CENTURYLINK COMMUNICATIONS LLC 730   2017-01-12   
424-433 8 Santa Monica: Santa Monica DA CA SNMNCAXPXJY  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2017-05-25   
424-433 9 Santa Monica: Santa Monica DA CA SHOKCA02IMD  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2020-04-29   
424-434 A Culver City CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730      
424-434 0 Culver City CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2019-07-06   
424-434 1 Culver City CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2019-07-06   
424-434 2 Culver City CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2019-07-06   
424-434 3 Culver City CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2019-07-06   
424-434 4 Culver City CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2019-09-09   
424-434 5 Culver City CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2020-04-02   
424-434 6 Culver City CA LSANCAJW5MD  197D VONAGE AMERICA LLC 730   2020-05-29   
424-434 7 Culver City CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2020-04-11   
424-434 8 Culver City CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2021-06-26   
424-434 9 Culver City CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2019-08-30   
424-435 A Torrance CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      
424-435 0 Torrance CA LSANCARC32Z  073H TELNYX LLC 730   2020-12-18   
424-435 1 Torrance CA   649C ONVOY, LLC - CA 730   2021-07-12   
424-435 2 Torrance CA   649C ONVOY, LLC - CA 730   2021-07-12   
424-435 3 Torrance CA LSANCA03JMD  506J TWILIO INTERNATIONAL INC 730   2020-10-20   
424-435 4 Torrance CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2019-09-09   
424-435 5 Torrance CA   649C ONVOY, LLC - CA 730   2021-07-12   
424-435 6 Torrance CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2021-05-30   
424-435 7 Torrance CA SHOKCA02IMD  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2019-11-02   
424-435 8 Torrance CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2019-09-14   
424-435 9 Torrance CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2019-07-26   
424-436 A Santa Monica: Santa Monica DA CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      
424-436 0 Santa Monica: Santa Monica DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2020-03-19   
424-436 1 Santa Monica: Santa Monica DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2020-08-04   
424-436 2 Santa Monica: Santa Monica DA CA TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730   2020-06-15   
424-436 3 Santa Monica: Santa Monica DA CA   649C ONVOY, LLC - CA 730   2021-07-04   
424-436 4 Santa Monica: Santa Monica DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2021-07-12   
424-436 5 Santa Monica: Santa Monica DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2021-08-16   

<< 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 >>

Last updated: Wed, 01 Dec 2021 01:40:16 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.