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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-397 4 El Segundo CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2017-10-13   
424-397 5 El Segundo CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2016-12-01   
424-397 6 El Segundo CA LSANCA03DS7  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2015-12-07   
424-397 7 El Segundo CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-11-09   
424-397 8 El Segundo CA LSANCA03DS7  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2016-06-06   
424-397 9 El Segundo CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2016-09-22   
424-398 A Redondo CA SNMNCAXPXJY  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730      
424-398 0 Redondo CA SNMNCAXPXJY  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2015-07-31   
424-398 1 Redondo CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2015-08-01   
424-398 2 Redondo CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2015-08-01   
424-398 3 Redondo CA LSANCARCD9S  4129 O1 COMMUNICATIONS, INC. - CA 730   2015-08-01   
424-398 4 Redondo CA LSANCARCD9S  4129 O1 COMMUNICATIONS, INC. - CA 730   2015-08-01   
424-398 5 Redondo CA IRVNCASMGT0  7453 US TELEPACIFIC CORP. - CA 730   2015-10-12   
424-398 6 Redondo CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2015-09-04   
424-398 7 Redondo CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2015-08-01   
424-398 8 Redondo CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2015-08-01   
424-398 9 Redondo CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-09-05   
424-399 A Torrance CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730      
424-399 0 Torrance CA TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730   2017-02-03   
424-399 1 Torrance CA LNBHCAAXDS0  707H INTEGRATED PATH COMMUNICATIONS, LLC - CA 730   2017-04-16   
424-399 2 Torrance CA TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730   2017-07-02   
424-399 3 Torrance CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2017-02-26   
424-399 4 Torrance CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2017-07-17   
424-399 5 Torrance CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2017-01-12   
424-399 6 Torrance CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2017-08-08   
424-399 7 Torrance CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2017-08-31   
424-399 8 Torrance CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2018-06-20   
424-399 9 Torrance CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2017-05-29   
424-400 A Redondo CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
424-400 0 Redondo CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2010-11-07   
424-400 1 Redondo CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2011-01-10   
424-400 2 Redondo CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2010-12-12   
424-400 3 Redondo CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2010-12-12   
424-400 4 Redondo CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2010-11-09   
424-400 5 Redondo CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2010-12-23   
424-400 6 Redondo CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-04-30   
424-400 7 Redondo CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2011-04-02   
424-400 8 Redondo CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-05-13   
424-400 9 Redondo CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2011-09-17   
424-401 A Lomita CA ANHMCA01XRY  318J COMCAST IP PHONE LLC 730   2021-01-27   
424-401 0 Lomita CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2019-03-24   
424-401 1 Lomita CA ANHMCA01XRY  318J COMCAST IP PHONE LLC 730   2017-11-14   
424-401 2 Lomita CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2017-12-22   
424-401 3 Lomita CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2017-12-22   
424-401 4 Lomita CA LNBHCAAXDS0  707H INTEGRATED PATH COMMUNICATIONS, LLC - CA 730   2018-05-04   
424-401 5 Lomita CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2019-03-24   
424-401 6 Lomita CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2019-01-20   
424-401 7 Lomita CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2018-11-02   
424-401 8 Lomita CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2018-09-01   
424-401 9 Lomita CA LSANCAJW6MD  073H TELNYX LLC 730   2018-05-11   

<< 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 >>

Last updated: Sun, 17 Oct 2021 19:41:42 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.