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.

Bridgeport, CA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
442-203 A VTVLCAXAX5Y  649C ONVOY, LLC - CA 730   2024-01-23   
442-203 0   649C ONVOY, LLC - CA 730   2016-05-19   
442-203 1   649C ONVOY, LLC - CA 730   2016-05-19   
442-203 2   145J TERRA NOVA TELECOM INC. 730   2026-02-05   
442-203 3   649C ONVOY, LLC - CA 730   2019-03-03   
442-203 4   649C ONVOY, LLC - CA 730   2019-03-03   
442-203 5   707H INTEGRATED PATH COMMUNICATIONS, LLC - CA 730   2018-05-08   
442-203 6   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2019-06-19   
442-203 7   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2020-01-15   
442-203 8   624H ONVOY SPECTRUM, LLC 730   2025-01-30   
442-203 9   073H TELNYX LLC 730   2018-05-11   
442-744 A LSANCAJWIMD  965H FRACTEL, LLC 730      
442-744 0   073H TELNYX LLC 730   2021-02-26   
442-744 1   939H COMMIO, LLC 730   2024-01-20   
442-744 2   649C ONVOY, LLC - CA 730   2021-08-09   
442-744 3   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2023-05-09   
442-744 4   965H FRACTEL, LLC 730   2021-01-07   
442-744 5   939H COMMIO, LLC 730   2024-01-20   
442-744 6   939H COMMIO, LLC 730   2021-10-09   
442-744 7   939H COMMIO, LLC 730   2021-10-09   
442-744 8   939H COMMIO, LLC 730   2021-10-09   
760-203 A LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
760-203 0   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
760-203 1   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
760-203 2   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
760-203 3   981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-12-28   
760-203 4   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2005-07-26   
760-203 5   981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-08-28   
760-203 6   981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-02-21   
760-203 7   508J CENTURYLINK COMMUNICATIONS, LLC 730   2014-06-27   
760-203 8   515J IP HORIZON LLC 730   2015-09-19   
760-203 9   145J TERRA NOVA TELECOM INC. 730   2022-06-01   
760-616 A RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
760-616 0   6010 NEW CINGULAR WIRELESS PCS, LLC 730      
760-616 1   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2010-08-22   
760-616 2   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2013-06-21   
760-616 3   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2013-03-28   
760-616 4   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2009-05-17   
760-616 5   649C ONVOY, LLC - CA 730   2008-08-25   
760-616 6   649C ONVOY, LLC - CA 730   2012-12-31   
760-616 7   649C ONVOY, LLC - CA 730   2013-11-29   
760-616 8   649C ONVOY, LLC - CA 730   2013-11-29   
760-616 9   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2013-03-06   
760-932 A BRPTCAXFRS4  4420 FRONTIER CALIFORNIA INC. 730      
760-932 0   981E BANDWIDTH.COM CLEC, LLC - CA 730   2015-10-03   
760-932 1   4420 FRONTIER CALIFORNIA INC. 730      
760-932 2   649C ONVOY, LLC - CA 730   2002-12-18   
760-932 3   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2025-09-14   
760-932 4   649C ONVOY, LLC - CA 730   2014-01-10   
760-932 5   4420 FRONTIER CALIFORNIA INC. 730      
760-932 6   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2014-04-24   
760-932 7   4420 FRONTIER CALIFORNIA INC. 730      
760-932 8   649C ONVOY, LLC - CA 730   2012-04-29   
760-932 9   4420 FRONTIER CALIFORNIA INC. 730      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.