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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
323-331 A Los Angeles: DA 02 CA IRVECAEIDS0  7240 MCI WORLDCOM COMMUNICATIONS, INC., CA 730      
323-331 0 Los Angeles: DA 02 CA   899D METROPCS NETWORKS, LLC 730   2009-12-28   
323-331 1 Los Angeles: DA 02 CA   899D METROPCS NETWORKS, LLC 730   2009-12-28   
323-331 2 Los Angeles: DA 02 CA   899D METROPCS NETWORKS, LLC 730   2009-12-28   
323-331 3 Los Angeles: DA 02 CA   206C CBEYOND COMMUNICATIONS, LLC - CA 730   2005-09-29   
323-331 4 Los Angeles: DA 02 CA   258E YMAX COMMUNICATIONS CORP. - CA 730   2009-08-31   
323-331 5 Los Angeles: DA 02 CA   899D METROPCS NETWORKS, LLC 730   2007-04-12   
323-331 6 Los Angeles: DA 02 CA   899D METROPCS NETWORKS, LLC 730   2007-04-12   
323-331 7 Los Angeles: DA 02 CA   899D METROPCS NETWORKS, LLC 730   2007-04-12   
323-331 8 Los Angeles: DA 02 CA   899D METROPCS NETWORKS, LLC 730   2007-04-12   
323-331 9 Los Angeles: DA 02 CA   7240 MCI WORLDCOM COMMUNICATIONS, INC., CA 730      

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.