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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NPA: 323 [Rate centres in NPA 323] [Dial plan for NPA 323]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA Eff date Disc date Map
323-424 A Los Angeles: DA 13 CA ANHMCA01X2X  516C AT&T CORP. 730 2006-05-15    map
323-424 0 Los Angeles: DA 13 CA   899D METROPCS NETWORKS, LLC 730 2007-06-23     
323-424 1 Los Angeles: DA 13 CA   899D METROPCS NETWORKS, LLC 730 2007-06-23     
323-424 2 Los Angeles: DA 13 CA   899D METROPCS NETWORKS, LLC 730 2007-06-23     
323-424 3 Los Angeles: DA 13 CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730 2007-03-13     
323-424 4 Los Angeles: DA 13 CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730 2007-04-13     
323-424 5 Los Angeles: DA 13 CA   899D METROPCS NETWORKS, LLC 730 2007-06-23     
323-424 6 Los Angeles: DA 13 CA   899D METROPCS NETWORKS, LLC 730 2007-06-23     
323-424 7 Los Angeles: DA 13 CA   516C AT&T CORP. 730 2006-05-15     
323-424 8 Los Angeles: DA 13 CA   899D METROPCS NETWORKS, LLC 730 2007-06-23     
323-424 9 Los Angeles: DA 13 CA   899D METROPCS NETWORKS, LLC 730 2007-06-23     

Last updated: Sat, 09 Jun 2018 13:21:19 UTC

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