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.

Ione, CA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
209-274 A IONECA11RS0  9740 PACIFIC BELL 738      
209-274 0   9740 PACIFIC BELL 738      
209-274 1   9740 PACIFIC BELL 738      
209-274 2   9740 PACIFIC BELL 738      
209-274 3   649C ONVOY, LLC - CA 738   2012-12-31   
209-274 4   9740 PACIFIC BELL 738      
209-274 5   9740 PACIFIC BELL 738      
209-274 6   9740 PACIFIC BELL 738      
209-274 7   9262 UTILITY TELECOM GROUP, LLC - CA 738   2006-05-24   
209-274 8   624H ONVOY SPECTRUM, LLC 738   2023-12-11   
209-274 9   9740 PACIFIC BELL 738      
209-332 A SKTNCASLDS0  7128 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 738      
209-332 0   6010 NEW CINGULAR WIRELESS PCS, LLC 738   2016-01-03   
209-332 1   649C ONVOY, LLC - CA 738   2016-02-24   
209-332 2   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 738   2016-01-31   
209-332 3   7128 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 738   2015-05-01   
209-332 4   649C ONVOY, LLC - CA 738   2016-02-24   
209-332 5   073H TELNYX LLC 738   2017-03-27   
209-332 6   649C ONVOY, LLC - CA 738   2021-12-14   
209-332 7   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 738   2022-04-12   
209-332 8   649C ONVOY, LLC - CA 738   2021-07-11   
209-332 9   649C ONVOY, LLC - CA 738   2021-07-11   
209-457 A SKTNCA01XJY  981E BANDWIDTH.COM CLEC, LLC - CA 738      
209-457 0   981E BANDWIDTH.COM CLEC, LLC - CA 738   2015-06-06   
209-457 1   073H TELNYX LLC 738   2021-07-18   
209-457 2   649C ONVOY, LLC - CA 738   2021-08-08   
209-457 3   649C ONVOY, LLC - CA 738   2021-08-08   
209-457 4   7128 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 738   2016-05-18   
209-457 5   649C ONVOY, LLC - CA 738   2019-03-07   
209-457 6   649C ONVOY, LLC - CA 738   2021-10-03   
209-457 7   649C ONVOY, LLC - CA 738   2019-03-07   
209-457 8   649C ONVOY, LLC - CA 738   2021-10-03   
209-457 9   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 738   2015-10-31   
209-781 A SKTNCA01XJY  981E BANDWIDTH.COM CLEC, LLC - CA 738      
209-781 0   981E BANDWIDTH.COM CLEC, LLC - CA 738   2010-09-19   
209-781 1   515J IP HORIZON LLC 738      
209-781 2   515J IP HORIZON LLC 738      
209-781 3   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 738   2014-10-20   
209-781 4   508J CENTURYLINK COMMUNICATIONS, LLC 738   2014-05-13   
209-781 5   6010 NEW CINGULAR WIRELESS PCS, LLC 738   2008-03-15   
209-781 6   6010 NEW CINGULAR WIRELESS PCS, LLC 738   2010-01-09   
209-781 7   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 738   2021-11-20   
209-781 8   649C ONVOY, LLC - CA 738   2013-03-22   
209-781 9   981E BANDWIDTH.COM CLEC, LLC - CA 738   2013-08-25   
209-790 A SKTNCA01X6Y  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 738      
209-790 0   649C ONVOY, LLC - CA 738      
209-790 1   649C ONVOY, LLC - CA 738      
209-790 2   649C ONVOY, LLC - CA 738      
209-790 3   981E BANDWIDTH.COM CLEC, LLC - CA 738   2009-02-23   
209-790 4   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 738   2005-07-30   
209-790 5   516C AT&T CORP. 738   2011-06-27   
209-790 6   649C ONVOY, LLC - CA 738   2006-01-14   
209-790 7   649C ONVOY, LLC - CA 738   2011-05-02   
209-790 8   649C ONVOY, LLC - CA 738   2013-03-22   
209-790 9   6010 NEW CINGULAR WIRELESS PCS, LLC 738   2014-03-19   
209-964 A SKTNCAGSGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 738      
209-964 0   939H COMMIO, LLC 738   2022-09-11   
209-964 1   073H TELNYX LLC 738   2023-04-28   
209-964 2   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 738   2024-11-20   
209-964 3   624H ONVOY SPECTRUM, LLC 738   2024-10-23   
209-964 4   624H ONVOY SPECTRUM, LLC 738   2024-10-23   
209-964 5   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 738   2022-08-10   
209-964 6   624H ONVOY SPECTRUM, LLC 738   2024-10-23   
209-964 8   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 738   2022-08-10   
209-964 9   6010 NEW CINGULAR WIRELESS PCS, LLC 738   2022-08-10   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.