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.

Santa Monica: Santa Monica DA, CA

<< 1 2 3 4 5 6 7 8

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
424-645 0 LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2006-08-26   
424-645 1 LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2006-08-26   
424-645 2 TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2007-07-02   
424-645 3 ANHMCANG2MD  4733 PAETEC COMMUNICATIONS, INC. - CA 730   2009-02-25   
424-645 4 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2006-08-28   
424-645 5 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-06-18   
424-645 6 ANHMCANG2MD  4733 PAETEC COMMUNICATIONS, INC. - CA 730   2006-08-28   
424-645 7 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-02-26   
424-645 8 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2010-05-04   
424-645 9 TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2006-09-29   
424-722 A LSANCAJWIMD  965H FRACTEL, LLC 730      
424-722 0 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2021-11-19   
424-722 1 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2021-11-19   
424-722 2 LSANCAJWIMD  965H FRACTEL, LLC 730   2021-11-15   
424-722 3 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2021-11-27   
424-722 4 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2021-11-27   
424-722 5 LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2021-11-16   
424-722 6 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2021-11-16   
424-722 7 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2021-11-16   
424-722 8 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2021-11-16   
424-722 9 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2021-11-16   
424-744 A LSANCA54ZMD  8690 GLOBAL CROSSING LOCAL SERVICES, INC. - CA 730      
424-744 0 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2008-09-18   
424-744 1 TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730   2007-09-28   
424-744 2 TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730   2007-09-28   
424-744 3 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-06-18   
424-744 4 LSANCA54ZMD  8690 GLOBAL CROSSING LOCAL SERVICES, INC. - CA 730   2006-11-09   
424-744 5 ANHMCANG2MD  4733 PAETEC COMMUNICATIONS, INC. - CA 730   2008-02-22   
424-744 6 TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730   2009-03-21   
424-744 7 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2008-01-04   
424-744 8 SNMNCAXPXJY  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2009-01-19   
424-744 9 TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2006-11-11   
424-844 A LSANCAJWIMD  965H FRACTEL, LLC 730      
424-844 0 SNMNCAXPX2Z  624H ONVOY SPECTRUM, LLC 730   2022-08-13   
424-844 1   026K BARR TELL USA, LLC 730   2022-06-08   
424-844 2 SNMNCAXPX2Z  624H ONVOY SPECTRUM, LLC 730   2022-08-13   
424-844 3 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2022-10-21   
424-844 4 LSANCAJWIMD  965H FRACTEL, LLC 730   2022-04-23   
424-844 5 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2022-11-21   
424-844 6 TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2022-08-08   
424-844 7 TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2022-08-08   
424-844 8 TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2022-08-08   
424-844 9 TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2022-08-08   
424-877 A LSANCAJWIMD  965H FRACTEL, LLC 730      
424-877 0 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2021-04-01   
424-877 1 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2021-07-12   
424-877 2 TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2021-03-25   
424-877 3 TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2021-03-25   
424-877 4 CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2024-09-16   
424-877 5 TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2021-03-25   
424-877 6 TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2021-03-25   
424-877 7 LSANCAJWIMD  965H FRACTEL, LLC 730   2020-07-26   
424-877 8 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2022-12-12   
424-877 9 TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2021-03-25   
424-902 A SNMNCAXPX2Z  624H ONVOY SPECTRUM, LLC 730      
424-902 0 TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2022-01-16   
424-902 1 TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2022-01-16   
424-902 2 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2022-03-23   
424-902 3 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2022-04-25   
424-902 4 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2022-05-25   
424-902 5 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2023-03-15   
424-902 6 SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2022-12-12   
424-902 7 LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2022-06-19   
424-902 8 LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2022-02-27   
424-902 9 SNMNCAXPX2Z  624H ONVOY SPECTRUM, LLC 730   2022-01-15   

<< 1 2 3 4 5 6 7 8

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.