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.

Ontario, CA

1 2 3 4 5 6 7 8 9 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
840-237 A ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2024-01-23   
840-237 0 LSANCAJW7MD  939H COMMIO, LLC 730   2024-01-28   
840-237 1 LSANCAJW7MD  939H COMMIO, LLC 730   2024-01-28   
840-237 2 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2023-11-20   
840-237 3 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2023-11-20   
840-237 4 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2023-11-20   
840-237 5 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2023-11-21   
840-237 6 GRDNCA02KMD  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2024-05-06   
840-237 7 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2024-11-15   
840-237 8 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2024-07-05   
840-237 9 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2024-11-27   
840-269 A   624H ONVOY SPECTRUM, LLC 730   2025-02-27   
840-269 0   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-02-28   
840-269 1   624H ONVOY SPECTRUM, LLC 730   2025-02-27   
840-269 2   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-02-28   
840-269 3   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-02-28   
840-269 4   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-02-28   
840-269 5   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-02-28   
840-269 6   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-02-28   
840-269 7   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-02-28   
840-269 8   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-02-28   
840-269 9   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-02-28   
840-270 A   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-03-03   
840-270 0   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-03-03   
840-270 1   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-03-03   
840-270 2   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-03-03   
840-270 3   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-03-03   
840-270 4   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-03-03   
840-270 5   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-03-03   
840-270 6   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-03-03   
840-270 7   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-03-03   
840-270 8   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-03-03   
840-270 9   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-03-03   
840-400 A LSANCAJWIMD  965H FRACTEL, LLC 730      
840-400 0 LSANCAJWIMD  965H FRACTEL, LLC 730   2021-03-06   
840-400 1 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2021-07-30   
840-400 2 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2021-07-30   
840-400 3 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2021-07-30   
840-400 4 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2023-02-05   
840-400 5 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2021-07-30   
840-400 6 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2021-10-03   
840-400 7 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2021-10-03   
840-400 8 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2021-10-03   
840-400 9 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2022-12-15   
840-699 A LSANCAJWIMD  965H FRACTEL, LLC 730      
840-699 0 LSANCA03IMD  553J WHITESKY COMMUNICATIONS, LLC 730   2021-10-02   
840-699 1 LSANCAJW7MD  939H COMMIO, LLC 730   2021-10-10   
840-699 2 LSANCAJW7MD  939H COMMIO, LLC 730   2021-10-10   
840-699 3 LSANCAJW7MD  939H COMMIO, LLC 730   2021-10-10   
840-699 4 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2022-09-12   
840-699 5 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2022-09-12   
840-699 6 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2023-10-16   
840-699 7 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2022-02-05   
840-699 8 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2022-02-05   
840-699 9 LSANCAJWIMD  965H FRACTEL, LLC 730   2021-09-16   
909-208 A RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730      
909-208 0 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730      
909-208 1 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730      
909-208 2 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730      
909-208 3 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730      
909-208 4 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730      
909-208 5 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730      
909-208 6 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730      
909-208 7 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730      
909-208 8 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730      
909-208 9 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730      
909-210 A RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-212 A IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
909-212 0 LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2008-01-31   
909-212 1 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2010-02-08   
909-212 2 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2008-06-07   
909-212 3 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2008-06-07   
909-212 4 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2008-08-22   
909-212 5 IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2007-04-29   
909-212 6 IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2007-04-29   
909-212 7 IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2007-04-29   
909-212 8 IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2007-04-29   
909-212 9 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2008-08-22   
909-214 A RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-215 A CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-218 A ONTRCAXPXBY  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730      
909-218 0 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2008-12-18   
909-218 1 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2008-01-15   
909-218 2 BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2008-11-13   
909-218 3 ANHMCAHLDS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2007-11-21   
909-218 4 ONTRCAXPXBY  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2007-06-06   
909-218 5 IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2008-11-17   
909-218 6 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2008-01-15   
909-218 7 ONTRCAXPXBY  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2008-04-17   
909-218 8 IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2009-11-13   
909-218 9 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2008-12-18   
909-223 A CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-224 A CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-225 A CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-226 A CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-227 A CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-228 A CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-229 A BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
909-230 A IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
909-230 0 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2004-03-07   

1 2 3 4 5 6 7 8 9 >>

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.