Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Los Angeles: DA 05, CA

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
323-647 0   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
323-647 1   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2011-11-14   
323-647 2   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2011-11-14   
323-647 3   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2011-11-14   
323-647 4   981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-06-20   
323-647 5   981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-06-20   
323-647 6   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
323-647 7   981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-05-07   
323-647 8   981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-09-30   
323-647 9   6529 T-MOBILE USA, INC. 730   2016-08-25   
323-685 A LSANCA35DS0  9740 PACIFIC BELL 730      
323-685 0   6529 T-MOBILE USA, INC. 730   2019-10-25   
323-685 1   9740 PACIFIC BELL 730      
323-685 2   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2014-11-10   
323-685 3   649C ONVOY, LLC - CA 730   2015-12-20   
323-685 4   649C ONVOY, LLC - CA 730   2008-07-29   
323-685 5   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2015-01-25   
323-685 6   649C ONVOY, LLC - CA 730   2015-12-20   
323-685 7   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2015-03-01   
323-685 8   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2016-05-28   
323-685 9   6529 T-MOBILE USA, INC. 730   2015-06-12   
323-704 A LSANCARCY5X  515J IP HORIZON LLC 730      
323-704 0   515J IP HORIZON LLC 730      
323-704 1   515J IP HORIZON LLC 730      
323-704 2   515J IP HORIZON LLC 730      
323-704 3   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2010-05-17   
323-704 4   515J IP HORIZON LLC 730      
323-704 5   6529 T-MOBILE USA, INC. 730   2004-05-15   
323-704 6   6529 T-MOBILE USA, INC. 730   2004-05-15   
323-704 7   6529 T-MOBILE USA, INC. 730   2015-04-03   
323-704 8   6529 T-MOBILE USA, INC. 730   2015-04-03   
323-704 9   6529 T-MOBILE USA, INC. 730   2015-04-03   
323-723 A LSANCA35DS1  9740 PACIFIC BELL 730      
323-723 0   9740 PACIFIC BELL 730      
323-723 1   6529 T-MOBILE USA, INC. 730   2015-06-12   
323-723 2   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2012-04-13   
323-723 3   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2012-04-13   
323-723 4   981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-11-11   
323-723 5   6529 T-MOBILE USA, INC. 730   2015-06-12   
323-723 6   6529 T-MOBILE USA, INC. 730   2015-06-12   
323-723 7   6529 T-MOBILE USA, INC. 730   2015-06-12   
323-723 8   6529 T-MOBILE USA, INC. 730   2015-06-12   
323-723 9   6529 T-MOBILE USA, INC. 730   2016-09-28   
323-729 A LSANCA34DS1  9740 PACIFIC BELL 730      
323-729 0   9740 PACIFIC BELL 730      
323-729 1   9740 PACIFIC BELL 730      
323-729 2   9740 PACIFIC BELL 730      
323-729 3   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2010-08-01   
323-729 4   9740 PACIFIC BELL 730      
323-729 5   9740 PACIFIC BELL 730      

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

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