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.

Lancaster, CA

<< 1 2 3 4 5 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
661-571 A BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
661-571 0 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2022-05-27   
661-571 1 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2022-05-27   
661-571 2 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2022-10-22   
661-571 3 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2022-10-22   
661-571 4 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2022-11-22   
661-571 5 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2022-12-20   
661-571 6 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2022-05-27   
661-571 7 ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2022-07-10   
661-571 8 LSANCAJW7MD  939H COMMIO, LLC 730   2022-11-10   
661-571 9 ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2022-10-30   
661-579 A SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2024-01-23   
661-579 0 SNMNCAXPXJY  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2010-08-30   
661-579 1 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2010-03-06   
661-579 2 IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2008-10-16   
661-579 3 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-07-02   
661-579 4 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-07-02   
661-579 5 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2011-05-08   
661-579 6 SNMNCAXPXJY  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2009-02-04   
661-579 7 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2008-08-01   
661-579 8 IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2008-09-04   
661-579 9 SNMNCAXPXJY  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2009-03-22   
661-582 A ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
661-582 0 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2017-06-11   
661-582 1   145J TERRA NOVA TELECOM INC. 730   2021-04-28   
661-582 2 ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2016-10-13   
661-582 3 ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2015-12-06   
661-582 4 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2016-03-11   
661-582 5 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2016-03-11   
661-582 6 SNMNCAXPXJY  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2016-06-10   
661-582 7 NHLLCA01DS0  7480 PACIFIC BELL (COMPETITIVE) 730   2016-06-15   
661-582 8 SNMNCAXPXJY  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2016-09-23   
661-582 9 ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2015-12-05   
661-604 A BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
661-604 0 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2023-04-03   
661-604 1 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2023-04-03   
661-604 2 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2023-04-03   
661-604 3 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2024-03-23   
661-604 4 LSANCAJWMMD  490J DISH WIRELESS, LLC 730   2023-11-18   
661-604 5 ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2023-04-08   
661-604 6 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2024-05-23   
661-604 7 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2024-02-25   
661-604 8 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2024-02-25   
661-604 9 ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-01-08   
661-609 A CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
661-643 A BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2024-08-17   
661-643 0 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2024-08-17   
661-643 1 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2024-08-17   
661-643 2 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2024-08-17   
661-643 3 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2024-08-17   
661-643 4 ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-08-18   
661-643 5 ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-08-18   
661-643 6 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2024-08-17   
661-643 7 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2024-08-17   
661-643 8 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2024-08-17   
661-643 9 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2024-08-17   
661-646 A SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2024-08-26   
661-646 0 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2024-08-26   
661-646 1   624H ONVOY SPECTRUM, LLC 730   2025-01-30   
661-646 2   649C ONVOY, LLC - CA 730   2025-02-01   
661-646 3 ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-11-22   
661-646 4 ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-11-22   
661-646 5 ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-11-22   
661-646 6 ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-11-22   
661-646 7 ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-10-05   
661-646 8 ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-10-05   
661-646 9 ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-10-05   
661-674 A TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
661-674 0 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2011-05-08   
661-674 1   515J IP HORIZON LLC 730      
661-674 2   515J IP HORIZON LLC 730      
661-674 3 ONTRCAFXDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 730   2010-08-18   
661-674 4   515J IP HORIZON LLC 730      
661-674 5 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2004-06-02   
661-674 6 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2003-12-14   
661-674 7 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2003-04-05   
661-674 8 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2004-04-21   
661-674 9 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2003-04-05   
661-718 A QZHLCAXF94K  2319 FRONTIER CALIFORNIA INC. 730      
661-718 0 QZHLCAXF94K  2319 FRONTIER CALIFORNIA INC. 730      
661-718 1 QZHLCAXF94K  2319 FRONTIER CALIFORNIA INC. 730      
661-718 2 QZHLCAXF94K  2319 FRONTIER CALIFORNIA INC. 730      
661-718 3 QZHLCAXF94K  2319 FRONTIER CALIFORNIA INC. 730      
661-718 4 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2006-01-14   
661-718 5 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2007-09-28   
661-718 6 TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2007-09-28   
661-718 7 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2007-02-26   
661-718 8 QZHLCAXF94K  2319 FRONTIER CALIFORNIA INC. 730      
661-718 9 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2007-09-28   
661-722 A QZHLCAXF94K  2319 FRONTIER CALIFORNIA INC. 730      
661-723 A LNCSCAXG94K  2319 FRONTIER CALIFORNIA INC. 730      
661-726 A LNCSCAXG94K  2319 FRONTIER CALIFORNIA INC. 730      
661-728 A LNCSCAXG94K  2319 FRONTIER CALIFORNIA INC. 730      
661-728 0 LNCSCAXG94K  2319 FRONTIER CALIFORNIA INC. 730      
661-728 1 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-05-27   
661-728 2 LNCSCAXG94K  2319 FRONTIER CALIFORNIA INC. 730      
661-728 3 LNCSCAXG94K  2319 FRONTIER CALIFORNIA INC. 730      
661-728 4 LNCSCAXG94K  2319 FRONTIER CALIFORNIA INC. 730      
661-728 5 LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730   2006-06-21   
661-728 6 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2007-09-28   

<< 1 2 3 4 5 >>

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.