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 11, CA

<< 1 2 3 4 5 6 7 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
323-373 2   9740 PACIFIC BELL 730      
323-373 3   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2011-12-05   
323-373 4   516J TON80 COMMUNICATIONS LLC 730   2022-04-19   
323-373 5   6529 T-MOBILE USA, INC. 730   2006-12-04   
323-373 6   6529 T-MOBILE USA, INC. 730   2004-09-10   
323-373 7   899D METROPCS NETWORKS, LLC 730   2005-12-03   
323-373 8   899D METROPCS NETWORKS, LLC 730   2006-02-06   
323-373 9   9740 PACIFIC BELL 730      
323-386 A LSANCA54DS0  8782 ALLEGIANCE TELECOM, INC. - CA 730      
323-386 0   8782 ALLEGIANCE TELECOM, INC. - CA 730      
323-386 1   6529 T-MOBILE USA, INC. 730   2005-09-24   
323-386 2   8782 ALLEGIANCE TELECOM, INC. - CA 730      
323-386 3   6529 T-MOBILE USA, INC. 730   2005-09-24   
323-386 4   8782 ALLEGIANCE TELECOM, INC. - CA 730      
323-386 5   899D METROPCS NETWORKS, LLC 730   2006-03-31   
323-386 6   8782 ALLEGIANCE TELECOM, INC. - CA 730      
323-386 7   8782 ALLEGIANCE TELECOM, INC. - CA 730      
323-386 8   8782 ALLEGIANCE TELECOM, INC. - CA 730      
323-386 9   8782 ALLEGIANCE TELECOM, INC. - CA 730      
323-390 A LSANCARCDSZ  7894 NORTH COUNTY COMMUNICATION CORPORATION - CA 730      
323-402 A TRNECAGBGT3  6664 SPRINT SPECTRUM, L.P. 730      
323-402 0   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2008-03-12   
323-402 1   981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-12-28   
323-402 2   145J TERRA NOVA TELECOM INC. 730   2020-12-06   
323-402 3   899D METROPCS NETWORKS, LLC 730   2003-12-07   
323-402 4   981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-12-28   
323-402 5   649C ONVOY, LLC - CA 730   2018-12-24   
323-402 6   649C ONVOY, LLC - CA 730   2018-12-24   
323-402 7   624H ONVOY SPECTRUM, LLC 730   2021-04-01   
323-402 8   899D METROPCS NETWORKS, LLC 730   2003-12-07   
323-402 9   981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-09-07   
323-419 A LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
323-419 0   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
323-419 1   981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-12-28   
323-419 2   981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-12-28   
323-419 3   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2006-07-03   
323-419 4   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2005-03-21   
323-419 5   981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-12-28   
323-419 6   899D METROPCS NETWORKS, LLC 730   2005-05-13   
323-419 7   899D METROPCS NETWORKS, LLC 730   2005-09-19   
323-419 8   6529 T-MOBILE USA, INC. 730   2006-12-13   
323-419 9   6529 T-MOBILE USA, INC. 730   2006-12-13   
323-529 A IRVECAEIDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 730      
323-529 0   649C ONVOY, LLC - CA 730   2012-12-30   
323-529 2   6529 T-MOBILE USA, INC. 730   2019-08-25   
323-529 3   981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-02-26   
323-529 4   6529 T-MOBILE USA, INC. 730   2006-08-03   
323-529 5   6529 T-MOBILE USA, INC. 730   2015-09-03   
323-529 6   649C ONVOY, LLC - CA 730   2012-12-30   
323-529 7   6529 T-MOBILE USA, INC. 730   2006-10-07   

<< 1 2 3 4 5 6 7 >>

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.