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.

Calimesa, CA

1 2 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
840-219 A RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730      
840-219 0   073H TELNYX LLC 730   2022-03-03   
840-219 1   516J TON80 COMMUNICATIONS, LLC 730   2022-04-14   
840-219 2   981E BANDWIDTH.COM CLEC, LLC - CA 730   2022-09-05   
840-219 3   981E BANDWIDTH.COM CLEC, LLC - CA 730   2022-09-05   
840-219 4   939H COMMIO, LLC 730   2022-11-11   
840-219 5   6529 T-MOBILE USA, INC. 730   2021-11-04   
840-219 6   6529 T-MOBILE USA, INC. 730   2021-11-04   
840-219 7   6529 T-MOBILE USA, INC. 730   2021-11-04   
840-219 8   6529 T-MOBILE USA, INC. 730   2021-11-04   
840-219 9   6529 T-MOBILE USA, INC. 730   2021-11-04   
840-223 A LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
840-223 0   981E BANDWIDTH.COM CLEC, LLC - CA 730   2022-12-25   
840-223 1   981E BANDWIDTH.COM CLEC, LLC - CA 730   2022-12-25   
840-223 2   649C ONVOY, LLC - CA 730   2023-01-02   
840-223 3   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-10-31   
840-223 4   649C ONVOY, LLC - CA 730   2023-02-04   
840-223 5   649C ONVOY, LLC - CA 730   2023-02-04   
840-223 6   6529 T-MOBILE USA, INC. 730   2024-03-18   
840-223 7   624H ONVOY SPECTRUM, LLC 730   2025-01-30   
840-223 8   516C AT&T CORP. 730   2026-01-06   
840-223 9   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2023-10-20   
840-253 A RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2024-04-27   
840-253 0   649C ONVOY, LLC - CA 730   2024-06-07   
840-253 1   649C ONVOY, LLC - CA 730   2025-10-26   
840-253 2   649C ONVOY, LLC - CA 730   2026-01-04   
840-253 9   6529 T-MOBILE USA, INC. 730   2024-04-27   
909-316 A LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
909-316 0   981E BANDWIDTH.COM CLEC, LLC - CA 730   2015-11-19   
909-316 1   649C ONVOY, LLC - CA 730   2016-01-06   
909-316 2   649C ONVOY, LLC - CA 730   2016-01-06   
909-316 3   649C ONVOY, LLC - CA 730   2016-07-31   
909-316 4   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2016-06-10   
909-316 5   649C ONVOY, LLC - CA 730   2016-07-31   
909-316 6   649C ONVOY, LLC - CA 730   2016-10-31   
909-316 7   649C ONVOY, LLC - CA 730   2016-10-31   
909-316 8   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2017-01-02   
909-316 9   6529 T-MOBILE USA, INC. 730   2016-08-07   
909-372 A LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730      
909-372 0   981E BANDWIDTH.COM CLEC, LLC - CA 730   2015-02-22   
909-372 1   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2015-04-23   
909-372 2   6529 T-MOBILE USA, INC. 730   2015-06-18   
909-372 3   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2013-05-30   
909-372 4   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2013-05-30   
909-372 5   6529 T-MOBILE USA, INC. 730   2015-09-03   
909-372 6   6529 T-MOBILE USA, INC. 730   2017-01-08   
909-372 7   508J CENTURYLINK COMMUNICATIONS, LLC 730   2014-07-17   
909-372 8   6529 T-MOBILE USA, INC. 730   2015-05-09   
909-372 9   6529 T-MOBILE USA, INC. 730   2015-03-20   
909-446 A CLMSCAXF79G  2319 FRONTIER CALIFORNIA INC. 730      
909-446 0   2319 FRONTIER CALIFORNIA INC. 730      
909-446 1   2319 FRONTIER CALIFORNIA INC. 730      
909-446 2   6529 T-MOBILE USA, INC. 730   2003-06-07   
909-446 3   515J IP HORIZON LLC 730   2004-11-13   
909-446 4   515J IP HORIZON LLC 730   2004-11-13   
909-446 5   6529 T-MOBILE USA, INC. 730   2005-09-01   
909-446 6   6529 T-MOBILE USA, INC. 730   2006-02-10   
909-446 7   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2004-04-01   
909-446 8   2319 FRONTIER CALIFORNIA INC. 730      
909-446 9   6529 T-MOBILE USA, INC. 730   2010-04-05   
909-500 A ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2024-01-23   
909-500 0   649C ONVOY, LLC - CA 730   2011-01-03   
909-500 1   981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-05-28   
909-500 2   981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-08-20   
909-500 3   981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-12-13   
909-500 4   649C ONVOY, LLC - CA 730   2013-02-08   
909-500 5   145J TERRA NOVA TELECOM INC. 730   2025-10-04   
909-500 6   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2012-11-19   
909-500 7   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2011-10-01   
909-500 8   981E BANDWIDTH.COM CLEC, LLC - CA 730   2016-08-28   
909-500 9   649C ONVOY, LLC - CA 730   2013-03-29   
909-504 A RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730      
909-504 0   649C ONVOY, LLC - CA 730   2021-07-30   
909-504 1   649C ONVOY, LLC - CA 730   2021-07-30   
909-504 2   649C ONVOY, LLC - CA 730   2021-07-30   
909-504 3   649C ONVOY, LLC - CA 730   2021-07-30   
909-504 5   6529 T-MOBILE USA, INC. 730   2021-09-19   
909-504 6   6529 T-MOBILE USA, INC. 730   2021-09-19   
909-504 7   6529 T-MOBILE USA, INC. 730   2021-07-22   
909-504 8   6529 T-MOBILE USA, INC. 730   2021-07-22   
909-504 9   6529 T-MOBILE USA, INC. 730   2021-07-22   
909-570 A COTNCA11DS0  7480 PACIFIC BELL (COMPETITIVE) 730      
909-570 0   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2009-03-11   
909-570 1   981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-03-04   
909-570 2   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2005-07-23   
909-570 3   829J PAETEC ITEL, LLC 730   2004-06-25   
909-570 4   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2009-04-20   
909-570 5   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2024-11-19   
909-570 6   7480 PACIFIC BELL (COMPETITIVE) 730      
909-570 7   6529 T-MOBILE USA, INC. 730   2008-05-04   
909-570 8   649C ONVOY, LLC - CA 730   2008-06-16   
909-570 9   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2007-03-13   
909-768 A RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730      
909-768 0   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2017-10-21   
909-768 1   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2019-10-03   
909-768 2   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2018-03-14   
909-768 3   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2018-10-20   
909-768 4   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2019-07-13   
909-768 5   707H INTEGRATED PATH COMMUNICATIONS, LLC - CA 730   2018-05-08   
909-768 6   649C ONVOY, LLC - CA 730   2019-02-25   

1 2 >>

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.