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: 998

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
323-998 A Los Angeles: DA 11 CA LSANCA03DS3  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
323-998 0 Los Angeles: DA 11 CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2013-08-22   
323-998 1 Los Angeles: DA 11 CA   649C ONVOY, LLC - CA 730   2013-10-03   
323-998 2 Los Angeles: DA 11 CA   649C ONVOY, LLC - CA 730   2013-10-03   
323-998 3 Los Angeles: DA 11 CA   6529 T-MOBILE USA, INC. 730   2007-11-07   
323-998 4 Los Angeles: DA 11 CA   649C ONVOY, LLC - CA 730   2013-10-03   
323-998 5 Los Angeles: DA 11 CA   649C ONVOY, LLC - CA 730   2013-10-03   
323-998 6 Los Angeles: DA 11 CA   7262 XO CALIFORNIA, INC. 730   2005-09-12   
323-998 7 Los Angeles: DA 11 CA   7262 XO CALIFORNIA, INC. 730   2005-09-12   
323-998 8 Los Angeles: DA 11 CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-05-22   
323-998 9 Los Angeles: DA 11 CA   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.