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.
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Los Angeles: DA 06, CA

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
323-996 3 LSANCARCD3S  649C ONVOY, LLC - CA 730   2017-02-05   
323-996 4 LSANCARCD3S  649C ONVOY, LLC - CA 730   2017-02-05   
323-996 5 SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2017-05-18   
323-996 6 TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730   2017-05-12   
323-996 7 LSANCAJW6MD  073H TELNYX LLC 730   2017-03-24   
323-996 8 TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730   2017-03-18   
323-996 9 TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730   2017-03-18   
738-888 A   252F WIDE VOICE, LLC - CA 730   2025-11-03   
738-888 0   252F WIDE VOICE, LLC - CA 730   2025-11-03   
738-888 7   252F WIDE VOICE, LLC - CA 730   2025-11-03   
738-888 8   252F WIDE VOICE, LLC - CA 730   2025-11-03   
738-888 9   252F WIDE VOICE, LLC - CA 730   2025-11-03   

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Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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