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.

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

NXX: 592

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
323-592 A Los Angeles: DA 13 CA TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730      
323-592 0 Los Angeles: DA 13 CA TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730   2009-09-04   
323-592 1 Los Angeles: DA 13 CA TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730   2009-09-04   
323-592 2 Los Angeles: DA 13 CA TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730   2009-09-04   
323-592 3 Los Angeles: DA 13 CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2009-09-23   
323-592 4 Los Angeles: DA 13 CA TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730   2009-12-23   
323-592 5 Los Angeles: DA 13 CA TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730   2009-12-23   
323-592 6 Los Angeles: DA 13 CA TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730   2009-12-23   
323-592 7 Los Angeles: DA 13 CA TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730   2009-12-23   
323-592 8 Los Angeles: DA 13 CA TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730   2010-01-21   
323-592 9 Los Angeles: DA 13 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-12-31   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.