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: 539

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
323-539 A Los Angeles: DA 04 CA LSANCA23DS0  9740 PACIFIC BELL 730      
323-539 0 Los Angeles: DA 04 CA ELMNCAFIGT1  6529 T-MOBILE USA, INC. 730   2007-04-05   
323-539 1 Los Angeles: DA 04 CA ELMNCAFIGT1  6529 T-MOBILE USA, INC. 730   2015-08-12   
323-539 2 Los Angeles: DA 04 CA LSANCA23DS0  9740 PACIFIC BELL 730      
323-539 3 Los Angeles: DA 04 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2013-06-07   
323-539 4 Los Angeles: DA 04 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-08-16   
323-539 5 Los Angeles: DA 04 CA LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730   2006-05-25   
323-539 6 Los Angeles: DA 04 CA ELMNCAFIGT1  6529 T-MOBILE USA, INC. 730   2006-12-29   
323-539 7 Los Angeles: DA 04 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-08-16   
323-539 8 Los Angeles: DA 04 CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-08-16   
323-539 9 Los Angeles: DA 04 CA ELMNCAFIGT1  6529 T-MOBILE USA, INC. 730   2016-08-18   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.