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.

Chino, CA

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

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
909-313 5 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2015-05-16   
909-313 6 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2015-05-26   
909-313 7 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2015-05-26   
909-313 8 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2015-05-26   
909-313 9 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-07-31   
909-315 A BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
909-315 0 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2013-02-28   
909-315 1 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2013-02-28   
909-315 2 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2013-03-01   
909-315 3 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2013-03-01   
909-315 4 COVNCAXFX3Y  649C ONVOY, LLC - CA 730   2013-03-07   
909-315 5 LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2013-07-01   
909-315 6 COVNCAXFX3Y  649C ONVOY, LLC - CA 730   2013-03-29   
909-315 7 LSANCAJW2MD  508J CENTURYLINK COMMUNICATIONS, LLC 730   2013-03-15   
909-315 8   793K TWC IP ENABLED SERVICES, LLC 730   2013-08-22   
909-315 9 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2013-10-22   
909-325 A LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730      
909-325 0 RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2014-04-11   
909-325 1 COVNCAXFX3Y  649C ONVOY, LLC - CA 730   2022-08-21   
909-325 2   793K TWC IP ENABLED SERVICES, LLC 730   2014-04-09   
909-325 3 COVNCAXFX3Y  649C ONVOY, LLC - CA 730   2014-12-15   
909-325 4 ANHMCAHLDS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2014-03-19   
909-325 5 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2014-06-14   
909-325 6 LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2013-05-30   
909-325 7 LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2013-05-30   
909-325 8 IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2013-09-13   
909-325 9 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2014-03-26   
909-334 A LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
909-334 0 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2011-11-22   
909-334 1 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-03-16   
909-334 2 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-03-16   
909-334 3 ONTRCAFXDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 730   2012-07-29   
909-334 4 LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2012-01-08   
909-334 5 LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2012-05-06   
909-334 6 LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2012-05-06   
909-334 7 IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2011-12-15   
909-334 8 LSANCAJWHMD  145J TERRA NOVA TELECOM INC. 730   2024-07-10   
909-334 9 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2024-07-10   
909-342 A LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
909-342 0 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2006-08-06   
909-342 1 COVNCAXFX3Y  649C ONVOY, LLC - CA 730   2006-08-31   
909-342 2 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2006-08-10   
909-342 3 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2006-08-10   
909-342 4 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2006-08-10   
909-342 5   624H ONVOY SPECTRUM, LLC 730   2025-02-21   
909-342 6 LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2007-05-23   
909-342 7 LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2006-08-09   
909-342 8 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2007-05-23   
909-342 9   793K TWC IP ENABLED SERVICES, LLC 730   2006-11-22   
909-364 A CHNOCAXF62J  2319 FRONTIER CALIFORNIA INC. 730      

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

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.