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 86 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-273 7 West Los Angeles CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2014-02-06   
424-273 8 West Los Angeles CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2012-08-02   
424-273 9 West Los Angeles CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2012-09-08   
424-274 A Beverly Hills CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
424-274 0 Beverly Hills CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-06-11   
424-274 1 Beverly Hills CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-07-04   
424-274 2 Beverly Hills CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-07-08   
424-274 3 Beverly Hills CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2012-04-08   
424-274 4 Beverly Hills CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2012-01-25   
424-274 5 Beverly Hills CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-05-19   
424-274 6 Beverly Hills CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-05-19   
424-274 7 Beverly Hills CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-07-24   
424-274 8 Beverly Hills CA TRNECAGBGT3  6664 SPRINT SPECTRUM, L.P. 730   2011-06-14   
424-274 9 Beverly Hills CA TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730   2011-06-14   
424-275 A Redondo CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
424-275 0 Redondo CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-04-05   
424-275 1 Redondo CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-04-05   
424-275 2 Redondo CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2011-06-30   
424-275 3 Redondo CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-04-05   
424-275 4 Redondo CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2011-11-14   
424-275 5 Redondo CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2012-09-08   
424-275 6 Redondo CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2012-03-05   
424-275 7 Redondo CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-04-05   
424-275 8 Redondo CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-04-05   
424-275 9 Redondo CA SNMNCAXPXJY  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2012-05-15   
424-276 A West Los Angeles CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
424-276 0 West Los Angeles CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-08-28   
424-276 1 West Los Angeles CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-08-28   
424-276 2 West Los Angeles CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2011-08-30   
424-276 3 West Los Angeles CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2012-01-06   
424-276 4 West Los Angeles CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2011-11-14   
424-276 5 West Los Angeles CA ANHMCANG2MD  4733 PAETEC COMMUNICATIONS, INC. - CA 730   2011-10-14   
424-276 6 West Los Angeles CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2012-03-10   
424-276 7 West Los Angeles CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2011-11-20   
424-276 8 West Los Angeles CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-08-24   
424-276 9 West Los Angeles CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-08-24   
424-277 A El Segundo CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
424-277 0 El Segundo CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-06-03   
424-277 1 El Segundo CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2012-07-02   
424-277 2 El Segundo CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2011-09-05   
424-277 3 El Segundo CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2011-09-05   
424-277 4 El Segundo CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2011-12-12   
424-277 5 El Segundo CA ONTRCAFXDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 730   2012-12-21   
424-277 6 El Segundo CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2012-05-26   
424-277 7 El Segundo CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2012-08-15   
424-277 8 El Segundo CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2012-08-27   
424-277 9 El Segundo CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-12-30   
424-278 A Beverly Hills CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
424-278 0 Beverly Hills CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2011-09-02   
424-278 1 Beverly Hills CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2011-10-23   

<< 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 86 >>

Last updated: Sat, 26 Aug 2023 16:14:14 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.