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.

Malibu, CA

1 2 3 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
310-317 A MALBCAXG45A  2319 FRONTIER CALIFORNIA INC. 730      
310-317 0 MALBCAXG45A  2319 FRONTIER CALIFORNIA INC. 730      
310-317 1 MALBCAXG45A  2319 FRONTIER CALIFORNIA INC. 730      
310-317 2 MALBCAXG45A  2319 FRONTIER CALIFORNIA INC. 730      
310-317 3 MALBCAXG45A  2319 FRONTIER CALIFORNIA INC. 730      
310-317 4 MALBCAXG45A  2319 FRONTIER CALIFORNIA INC. 730      
310-317 5 LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
310-317 6 MALBCAXG45A  2319 FRONTIER CALIFORNIA INC. 730      
310-317 7 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2004-09-25   
310-317 8 MALBCAXG45A  2319 FRONTIER CALIFORNIA INC. 730      
310-317 9 MALBCAXG45A  2319 FRONTIER CALIFORNIA INC. 730      
310-359 A TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      
310-359 0 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2005-07-09   
310-359 1 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2005-07-09   
310-359 2 TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2005-07-10   
310-359 3 TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2005-09-16   
310-359 4 CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2005-08-21   
310-359 5 TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2005-09-16   
310-359 6 IRVECAEIDS2  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 730   2005-11-15   
310-359 7 SNMNCAXPX2Z  624H ONVOY SPECTRUM, LLC 730   2022-04-19   
310-359 8 LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2005-12-12   
310-359 9 LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2011-04-07   
310-456 A MALBCAXG45A  2319 FRONTIER CALIFORNIA INC. 730      
310-456 0 MALBCAXG45A  2319 FRONTIER CALIFORNIA INC. 730      
310-456 1 MALBCAXG45A  2319 FRONTIER CALIFORNIA INC. 730      
310-456 2 MALBCAXG45A  2319 FRONTIER CALIFORNIA INC. 730      
310-456 3 MALBCAXG45A  2319 FRONTIER CALIFORNIA INC. 730      
310-456 4 TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2004-12-20   
310-456 5 MALBCAXG45A  2319 FRONTIER CALIFORNIA INC. 730      
310-456 6 MALBCAXG45A  2319 FRONTIER CALIFORNIA INC. 730      
310-456 7 MALBCAXG45A  2319 FRONTIER CALIFORNIA INC. 730      
310-456 8 MALBCAXG45A  2319 FRONTIER CALIFORNIA INC. 730      
310-456 9 MALBCAXG45A  2319 FRONTIER CALIFORNIA INC. 730      
310-457 A MALBCAXF45K  2319 FRONTIER CALIFORNIA INC. 730      
310-494 A LSANCA54ZMD  8690 GLOBAL CROSSING LOCAL SERVICES, INC. - CA 730      
310-494 0 LSANCA54ZMD  8690 GLOBAL CROSSING LOCAL SERVICES, INC. - CA 730      
310-494 1 TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2005-03-11   
310-494 2 LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2012-03-24   
310-494 3 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2022-10-16   
310-494 4 LSANCA03DS3  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2001-12-01   
310-494 5 LSANCA54ZMD  8690 GLOBAL CROSSING LOCAL SERVICES, INC. - CA 730      
310-494 6 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2009-08-17   
310-494 7 LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2012-10-14   
310-494 8 TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2003-09-20   
310-494 9 LSANCA54ZMD  8690 GLOBAL CROSSING LOCAL SERVICES, INC. - CA 730      
310-506 A IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
310-506 0 IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2000-07-14   
310-506 1 IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
310-506 2 IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
310-506 3 IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
310-506 4 IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
310-506 5 IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
310-506 6 IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
310-506 7 IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
310-506 8 IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
310-506 9 IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2000-07-14   
310-579 A IRVECAEIDS2  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 730      
310-579 0 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2022-10-04   
310-579 1 TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2003-09-20   
310-579 2 LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2004-01-13   
310-579 3 AGORCA11DS0  7480 PACIFIC BELL (COMPETITIVE) 730   2011-08-02   
310-579 4 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2009-04-02   
310-579 5 TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2006-07-22   
310-579 6 LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2013-05-08   
310-579 7 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2006-10-10   
310-579 8 BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2005-01-25   
310-579 9 IRVECAEIDS2  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 730      
310-589 A MALBCAXF45K  2319 FRONTIER CALIFORNIA INC. 730      
310-589 0 MALBCAXF45K  2319 FRONTIER CALIFORNIA INC. 730      
310-589 1 MALBCAXF45K  2319 FRONTIER CALIFORNIA INC. 730      
310-589 2 MALBCAXF45K  2319 FRONTIER CALIFORNIA INC. 730      
310-589 3   515J IP HORIZON LLC 730   2005-02-05   
310-589 4   515J IP HORIZON LLC 730   2005-02-05   
310-589 5 MALBCAXF45K  2319 FRONTIER CALIFORNIA INC. 730      
310-589 6 LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730   2006-07-01   
310-589 7 MALBCAXF45K  2319 FRONTIER CALIFORNIA INC. 730      
310-589 8 MALBCAXF45K  2319 FRONTIER CALIFORNIA INC. 730      
310-589 9 MALBCAXF45K  2319 FRONTIER CALIFORNIA INC. 730      
310-708 A SNMNCAXPX3Z  649C ONVOY, LLC - CA 730      
310-708 0 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2023-08-26   
310-708 1 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2023-08-26   
310-708 2 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2023-08-26   
310-708 3 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2023-08-26   
310-708 4 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2023-08-26   
310-708 5 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2023-08-26   
310-708 6 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2023-08-26   
310-708 7 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2023-08-26   
310-708 8 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2023-08-26   
310-708 9 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2023-08-26   
310-774 A TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      
310-774 0 LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2006-02-10   
310-774 1 TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2003-06-03   
310-774 2 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-05-12   
310-774 3 LSAJCAWZ7MD  4733 PAETEC COMMUNICATIONS, INC. - CA 730   2000-04-05   
310-774 4 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-05-12   
310-774 5 IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2000-04-13   
310-774 6 TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2005-05-09   
310-774 7 TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2004-07-16   
310-774 8 ONTRCAFXDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 730   2000-04-10   
310-774 9 TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2003-04-23   

1 2 3 >>

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.