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.

Los Angeles: DA 08, CA

<< 1 2 3 4 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
323-238 3   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2013-03-31   
323-238 4   981E BANDWIDTH.COM CLEC, LLC - CA 730   2006-11-02   
323-238 5   981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-10-10   
323-238 6   981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-12-04   
323-238 7   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2007-03-13   
323-238 8   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2014-03-07   
323-238 9   981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-10-10   
323-279 A LSANCA01XSY  9748 AMERICAN MESSAGING SERVICES, LLC 730      
323-285 A LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
323-285 0   981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-05-12   
323-285 1   981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-05-12   
323-285 2   981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-05-12   
323-285 3   981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-05-12   
323-285 4   649C ONVOY, LLC - CA 730   2009-02-14   
323-285 5   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
323-285 6   649C ONVOY, LLC - CA 730   2009-02-14   
323-285 7   649C ONVOY, LLC - CA 730   2009-02-14   
323-285 8   649C ONVOY, LLC - CA 730   2009-02-14   
323-285 9   981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-05-12   
323-306 A BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730      
323-306 0   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2004-10-25   
323-306 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730      
323-306 2   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2005-04-15   
323-306 3   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2005-04-15   
323-306 4   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2003-01-10   
323-306 5   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2006-01-28   
323-306 6   649C ONVOY, LLC - CA 730   2009-02-10   
323-306 7   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2006-01-28   
323-306 8   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2022-04-19   
323-306 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2005-09-12   
323-325 A   829J PAETEC ITEL, LLC 730      
323-325 0   993B CURATEL, LLC - CA 730   2007-05-11   
323-325 1   981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-08-13   
323-325 2   649C ONVOY, LLC - CA 730   2008-07-10   
323-325 3   649C ONVOY, LLC - CA 730   2008-07-10   
323-325 4   649C ONVOY, LLC - CA 730   2008-07-10   
323-325 5   981E BANDWIDTH.COM CLEC, LLC - CA 730   2013-10-28   
323-325 6   649C ONVOY, LLC - CA 730   2009-02-14   
323-325 7   516C AT&T CORP. 730   2006-06-30   
323-325 8   649C ONVOY, LLC - CA 730   2008-07-10   
323-325 9   829J PAETEC ITEL, LLC 730      
323-368 A LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730      
323-368 0   9262 UTILITY TELECOM GROUP, LLC - CA 730   2018-02-21   
323-368 1   9262 UTILITY TELECOM GROUP, LLC - CA 730   2017-12-09   
323-368 2   9262 UTILITY TELECOM GROUP, LLC - CA 730   2017-12-09   
323-368 3   9262 UTILITY TELECOM GROUP, LLC - CA 730   2017-12-09   
323-368 4   9262 UTILITY TELECOM GROUP, LLC - CA 730      
323-368 5   9262 UTILITY TELECOM GROUP, LLC - CA 730      
323-368 6   9262 UTILITY TELECOM GROUP, LLC - CA 730      
323-368 7   9262 UTILITY TELECOM GROUP, LLC - CA 730      
323-368 8   9262 UTILITY TELECOM GROUP, LLC - CA 730      
323-368 9   9262 UTILITY TELECOM GROUP, LLC - CA 730   2017-12-09   
323-432 A IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
323-432 0   981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-10-10   
323-432 1   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2014-11-30   
323-432 2   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2008-08-05   
323-432 3   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
323-432 4   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
323-432 5   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
323-432 6   649C ONVOY, LLC - CA 730   2009-08-31   
323-432 7   649C ONVOY, LLC - CA 730   2009-08-31   
323-432 8   649C ONVOY, LLC - CA 730   2009-08-31   
323-432 9   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
323-515 A LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
323-515 0   981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-12-04   
323-515 1   649C ONVOY, LLC - CA 730   2005-09-30   
323-515 2   981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-08-13   
323-515 3   649C ONVOY, LLC - CA 730   2008-07-10   
323-515 4   649C ONVOY, LLC - CA 730   2008-07-10   
323-515 5   649C ONVOY, LLC - CA 730   2008-07-10   
323-515 6   981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-11-11   
323-515 7   649C ONVOY, LLC - CA 730   2008-06-05   
323-515 8   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2014-01-10   
323-515 9   981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-10-10   
323-521 A LSANCA14DS0  9740 PACIFIC BELL 730      
323-521 0   993B CURATEL, LLC - CA 730   2009-08-24   
323-521 1   9740 PACIFIC BELL 730      
323-521 2   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2001-12-11   
323-521 3   649C ONVOY, LLC - CA 730   2008-07-10   
323-521 4   981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-08-13   
323-521 5   649C ONVOY, LLC - CA 730   2008-07-29   
323-521 6   649C ONVOY, LLC - CA 730   2009-08-31   
323-521 7   649C ONVOY, LLC - CA 730   2009-08-31   
323-521 8   649C ONVOY, LLC - CA 730   2009-08-31   
323-521 9   981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-04-17   
323-524 A IRVECAEIDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 730      
323-524 0   7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 730      
323-524 1   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2010-02-15   
323-524 2   649C ONVOY, LLC - CA 730   2014-09-20   
323-524 3   981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-05-07   
323-524 4   981E BANDWIDTH.COM CLEC, LLC - CA 730   2019-05-31   
323-524 5   981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-05-07   
323-524 6   624H ONVOY SPECTRUM, LLC 730   2024-01-15   
323-524 7   981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-05-07   
323-524 8   981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-04-17   
323-524 9   649C ONVOY, LLC - CA 730   2014-09-20   
323-544 A BLTNCAADPS2  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730      
323-544 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730      
323-544 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730      
323-544 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730      

<< 1 2 3 4 >>

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.