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.

Desert Center, CA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
442-384 A PLSPCAXG08Z  388E CEBRIDGE TELECOM CA, LLC DBA SUDDENLINK COMMS - CA 973      
442-384 0   624H ONVOY SPECTRUM, LLC 973   2024-05-29   
442-384 5   388E CEBRIDGE TELECOM CA, LLC DBA SUDDENLINK COMMS - CA 973   2022-09-10   
442-388 A PLSPCA19BMD  965H FRACTEL, LLC 973      
442-388 0   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 973   2020-11-16   
442-388 1   073H TELNYX LLC 973   2020-11-22   
442-388 3   649C ONVOY, LLC - CA 973   2021-03-04   
442-388 4   649C ONVOY, LLC - CA 973   2021-03-04   
442-388 5   649C ONVOY, LLC - CA 973   2021-08-09   
442-388 8   965H FRACTEL, LLC 973   2020-11-15   
442-388 9   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 973   2021-05-29   
760-205 A PLSPCAXG06Z  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 973      
760-205 0   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 973   2015-12-13   
760-205 1   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 973   2012-12-29   
760-205 2   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 973   2014-04-14   
760-205 3   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 973   2015-07-09   
760-205 4   649C ONVOY, LLC - CA 973   2016-08-11   
760-205 5   649C ONVOY, LLC - CA 973   2016-08-11   
760-205 6   649C ONVOY, LLC - CA 973   2017-03-23   
760-205 7   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 973   2007-02-02   
760-205 8   073H TELNYX LLC 973   2017-04-27   
760-205 9   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 973   2010-08-28   
760-227 A DSCTCAXGRS1  2319 FRONTIER CALIFORNIA INC. 973      
760-227 0   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 973   2017-07-07   
760-227 1   649C ONVOY, LLC - CA 973   2019-12-09   
760-227 2   649C ONVOY, LLC - CA 973   2019-03-21   
760-227 3   2319 FRONTIER CALIFORNIA INC. 973      
760-227 4   515J IP HORIZON LLC 973   2008-11-03   
760-227 5   649C ONVOY, LLC - CA 973   2019-03-21   
760-227 6   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 973   2017-07-20   
760-227 7   649C ONVOY, LLC - CA 973   2014-01-09   
760-227 8   649C ONVOY, LLC - CA 973   2019-10-26   
760-227 9   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 973   2020-01-18   
760-437 A PLSPCAXGXOZ  508J CENTURYLINK COMMUNICATIONS, LLC 973      
760-437 0   515J IP HORIZON LLC 973      
760-437 1   649C ONVOY, LLC - CA 973      
760-437 2   649C ONVOY, LLC - CA 973      
760-437 3   649C ONVOY, LLC - CA 973   2019-09-15   
760-437 4   649C ONVOY, LLC - CA 973   2019-09-15   
760-437 5   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 973   2005-07-30   
760-437 6   649C ONVOY, LLC - CA 973   2005-12-22   
760-437 7   508J CENTURYLINK COMMUNICATIONS, LLC 973   2016-01-02   
760-437 8   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 973   2018-06-08   
760-437 9   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 973   2018-12-20   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.