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: 323 [Rate centres in NPA 323] [Dial plan for NPA 323]

<< 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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
323-450 3 Los Angeles: DA 14 CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
323-450 4 Los Angeles: DA 14 CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
323-450 5 Los Angeles: DA 14 CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2007-07-23   
323-450 6 Los Angeles: DA 14 CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2003-08-26   
323-450 7 Los Angeles: DA 14 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2013-01-27   
323-450 8 Los Angeles: DA 14 CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
323-450 9 Los Angeles: DA 14 CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2010-10-01   
323-451 A Los Angeles: DA 09 CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
323-451 0 Los Angeles: DA 09 CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
323-451 1 Los Angeles: DA 09 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-04-19   
323-451 2 Los Angeles: DA 09 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-01-03   
323-451 3 Los Angeles: DA 09 CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2009-07-17   
323-451 4 Los Angeles: DA 09 CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
323-451 5 Los Angeles: DA 09 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2013-06-07   
323-451 6 Los Angeles: DA 09 CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
323-451 7 Los Angeles: DA 09 CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2012-03-10   
323-451 8 Los Angeles: DA 09 CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2010-07-16   
323-451 9 Los Angeles: DA 09 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2013-06-07   
323-452 A Los Angeles: DA 13 CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730      
323-452 0 Los Angeles: DA 13 CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2012-11-25   
323-452 1 Los Angeles: DA 13 CA LNBHCAXPXQX  981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-10-15   
323-452 2 Los Angeles: DA 13 CA LNBHCAXPXQX  981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-10-15   
323-452 3 Los Angeles: DA 13 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-12-28   
323-452 4 Los Angeles: DA 13 CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2012-12-23   
323-452 5 Los Angeles: DA 13 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-12-28   
323-452 6 Los Angeles: DA 13 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-12-28   
323-452 7 Los Angeles: DA 13 CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-08-28   
323-452 8 Los Angeles: DA 13 CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-10-24   
323-452 9 Los Angeles: DA 13 CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2012-07-14   
323-453 A Montebello CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730      
323-453 0 Montebello CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2013-03-08   
323-453 1 Montebello CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2013-03-08   
323-453 2 Montebello CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2013-03-08   
323-453 3 Montebello CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2013-03-08   
323-453 4 Montebello CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2013-03-08   
323-453 5 Montebello CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2013-03-08   
323-453 6 Montebello CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2013-02-28   
323-453 7 Montebello CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2013-02-28   
323-453 8 Montebello CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2013-02-28   
323-453 9 Montebello CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2013-02-28   
323-454 A Los Angeles: DA 02 CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
323-454 0 Los Angeles: DA 02 CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2009-08-31   
323-454 1 Los Angeles: DA 02 CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2008-05-16   
323-454 2 Los Angeles: DA 02 CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2008-05-16   
323-454 3 Los Angeles: DA 02 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2008-11-19   
323-454 4 Los Angeles: DA 02 CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
323-454 5 Los Angeles: DA 02 CA LSANCAJW2MD  508J CENTURYLINK COMMUNICATIONS, LLC 730   2013-03-08   
323-454 6 Los Angeles: DA 02 CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
323-454 7 Los Angeles: DA 02 CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2011-01-24   
323-454 8 Los Angeles: DA 02 CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2009-08-31   
323-454 9 Los Angeles: DA 02 CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
323-455 A Los Angeles: DA 09 CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
323-455 0 Los Angeles: DA 09 CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2008-01-15   
323-455 1 Los Angeles: DA 09 CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2008-01-15   
323-455 2 Los Angeles: DA 09 CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2008-07-29   
323-455 3 Los Angeles: DA 09 CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2009-02-10   
323-455 4 Los Angeles: DA 09 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-09-26   
323-455 5 Los Angeles: DA 09 CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2014-08-23   
323-455 6 Los Angeles: DA 09 CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2008-03-07   
323-455 7 Los Angeles: DA 09 CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2008-03-07   
323-455 8 Los Angeles: DA 09 CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2007-06-28   
323-455 9 Los Angeles: DA 09 CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2007-06-28   
323-456 A Los Angeles: DA 13 CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
323-456 0 Los Angeles: DA 13 CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-11-29   
323-456 1 Los Angeles: DA 13 CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
323-456 2 Los Angeles: DA 13 CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2011-03-13   
323-456 3 Los Angeles: DA 13 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-03-30   
323-456 4 Los Angeles: DA 13 CA   145J TERRA NOVA TELECOM INC. 730   2022-04-19   
323-456 5 Los Angeles: DA 13 CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2011-03-13   
323-456 6 Los Angeles: DA 13 CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2005-08-10   
323-456 7 Los Angeles: DA 13 CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
323-456 8 Los Angeles: DA 13 CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
323-456 9 Los Angeles: DA 13 CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2011-04-13   
323-457 A Los Angeles: DA 06 CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
323-457 0 Los Angeles: DA 06 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-08-16   
323-457 1 Los Angeles: DA 06 CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2014-03-07   
323-457 2 Los Angeles: DA 06 CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2014-02-09   
323-457 3 Los Angeles: DA 06 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-08-16   
323-457 4 Los Angeles: DA 06 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-08-16   
323-457 5 Los Angeles: DA 06 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-08-16   
323-457 6 Los Angeles: DA 06 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-08-16   
323-457 7 Los Angeles: DA 06 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-06-25   
323-457 8 Los Angeles: DA 06 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-08-16   
323-457 9 Los Angeles: DA 06 CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2014-05-25   
323-458 A Montebello CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730      
323-458 0 Montebello CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2012-05-07   
323-458 1 Montebello CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2012-05-07   
323-458 2 Montebello CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2012-05-04   
323-458 3 Montebello CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2012-05-04   
323-458 4 Montebello CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2012-05-04   
323-458 5 Montebello CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2014-09-22   
323-458 6 Montebello CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2014-09-22   
323-458 7 Montebello CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2012-05-07   
323-458 8 Montebello CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2012-05-03   
323-458 9 Montebello CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2012-05-03   
323-459 A Los Angeles: DA 14 CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
323-460 A Los Angeles: DA 14 CA HLWDCA01DS1  9740 PACIFIC BELL 730      
323-461 A Los Angeles: DA 14 CA HLWDCA01DS1  9740 PACIFIC BELL 730      
323-462 A Los Angeles: DA 14 CA HLWDCA01DS0  9740 PACIFIC BELL 730      
323-463 A Los Angeles: DA 14 CA HLWDCA01DS1  9740 PACIFIC BELL 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 >>

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.