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.

El Monte, CA

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
626-877 4 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2016-12-22   
626-877 5 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2016-10-30   
626-877 6 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2016-10-30   
626-877 7 LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2016-06-03   
626-877 8 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2016-09-03   
626-877 9 LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2016-10-07   
626-941 A IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
626-941 0 TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2024-11-16   
626-941 1 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-12-10   
626-941 2 LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2013-03-29   
626-941 3 IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
626-941 4 CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2004-01-31   
626-941 5 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2006-03-06   
626-941 6 MTPKCACG1MD  776C CHARTER FIBERLINK CA-CCO, LLC - CA 730   2005-08-10   
626-941 7 TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730   2008-12-19   
626-941 8 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2006-01-15   
626-941 9 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-03-21   
626-978 A LSANCAJWIMD  965H FRACTEL, LLC 730      
626-978 0 LSANCAJW7MD  939H COMMIO, LLC 730   2021-10-09   
626-978 1 LSANCAJW7MD  939H COMMIO, LLC 730   2021-10-09   
626-978 2 LSANCAJW7MD  939H COMMIO, LLC 730   2021-10-09   
626-978 3 LSANCA03GMD  624H ONVOY SPECTRUM, LLC 730   2021-11-14   
626-978 4 LSANCA03GMD  624H ONVOY SPECTRUM, LLC 730   2021-11-14   
626-978 5 LSANCA03GMD  624H ONVOY SPECTRUM, LLC 730   2021-11-14   
626-978 6 LSANCA03GMD  624H ONVOY SPECTRUM, LLC 730   2021-11-14   
626-978 7 LSANCA03GMD  624H ONVOY SPECTRUM, LLC 730   2021-11-14   
626-978 8 LSANCAJWIMD  965H FRACTEL, LLC 730   2021-10-02   
626-978 9 LSANCARCD3S  649C ONVOY, LLC - CA 730   2021-11-16   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.