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.

Los Angeles: DA 05, CA

<< 1 2 3 4 5 6 7 8 9 10 11 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
323-488 5 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-08-26   
323-488 6 BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2009-01-10   
323-488 7 BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2005-01-26   
323-488 8 LNBHCATVDS0  981E BANDWIDTH.COM CLEC, LLC - CA 730   2022-10-03   
323-488 9 BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2005-01-26   
323-510 A LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
323-510 0 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2008-01-28   
323-510 1 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2013-05-27   
323-510 2 LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
323-510 3 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2013-05-03   
323-510 4 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2013-05-03   
323-510 5 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-09-19   
323-510 6 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-09-19   
323-510 7 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-09-19   
323-510 8 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-09-19   
323-510 9 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2016-09-28   
323-518 A LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
323-518 0 LSANCARCDS1  993B CURATEL, LLC - CA 730   2009-08-24   
323-518 1 LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2011-02-04   
323-518 2 LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
323-518 3 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2007-05-30   
323-518 4 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2007-05-30   
323-518 5 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2007-05-30   
323-518 6 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2007-05-30   
323-518 7 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2007-05-01   
323-518 8 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2007-05-01   
323-518 9 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2007-05-01   
323-526 A LSANCA34DS0  9740 PACIFIC BELL 730      
323-526 0 LSANCA34DS0  9740 PACIFIC BELL 730      
323-526 1 LSANCA34DS0  9740 PACIFIC BELL 730      
323-526 2 LSANCA34DS0  9740 PACIFIC BELL 730      
323-526 3 LSANCA34DS0  9740 PACIFIC BELL 730      
323-526 4 LSANCA34DS0  9740 PACIFIC BELL 730      
323-526 5 LSANCA34DS0  9740 PACIFIC BELL 730      
323-526 6 LSANCA34DS0  9740 PACIFIC BELL 730      
323-526 7 LSANCA34DS0  9740 PACIFIC BELL 730      
323-526 8 SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2010-03-23   
323-526 9 LSANCA34DS0  9740 PACIFIC BELL 730      
323-604 A LSANCA34DS0  9740 PACIFIC BELL 730      
323-604 0 LSANCA34DS0  9740 PACIFIC BELL 730      
323-604 1 LSANCARCD3S  649C ONVOY, LLC - CA 730   2005-09-29   
323-604 2 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2007-05-30   
323-604 3 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2007-05-30   
323-604 4 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2016-11-12   
323-604 5 LSANCA03GMD  624H ONVOY SPECTRUM, LLC 730   2021-04-21   
323-604 6 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2016-09-28   
323-604 7 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2007-05-30   
323-604 8 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2007-05-30   
323-604 9 SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2013-08-22   
323-647 A IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      

<< 1 2 3 4 5 6 7 8 9 10 11 >>

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.