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: 684

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
323-684 A Los Angeles: DA 03 CA PSDNCA12DS0  9740 PACIFIC BELL 730      
323-684 0 Los Angeles: DA 03 CA   9740 PACIFIC BELL 730      
323-684 1 Los Angeles: DA 03 CA   6529 T-MOBILE USA, INC. 730   2006-07-23   
323-684 2 Los Angeles: DA 03 CA   9262 UTILITY TELECOM GROUP, LLC - CA 730   2006-05-25   
323-684 3 Los Angeles: DA 03 CA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2020-01-25   
323-684 4 Los Angeles: DA 03 CA   6529 T-MOBILE USA, INC. 730   2005-08-21   
323-684 5 Los Angeles: DA 03 CA   6529 T-MOBILE USA, INC. 730   2005-08-21   
323-684 6 Los Angeles: DA 03 CA   6529 T-MOBILE USA, INC. 730   2005-08-21   
323-684 7 Los Angeles: DA 03 CA   6529 T-MOBILE USA, INC. 730   2005-08-21   
323-684 8 Los Angeles: DA 03 CA   6529 T-MOBILE USA, INC. 730   2005-08-21   
323-684 9 Los Angeles: DA 03 CA   6529 T-MOBILE USA, INC. 730   2005-08-21   

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.