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 Eff date Disc date Map
323-879 A Los Angeles: DA 13 CA WLANCA01DS0  9740 PACIFIC BELL 730     map
323-879 0 Los Angeles: DA 13 CA   9740 PACIFIC BELL 730      
323-879 1 Los Angeles: DA 13 CA   899D METROPCS NETWORKS, LLC 730 2017-08-20     
323-879 2 Los Angeles: DA 13 CA   899D METROPCS NETWORKS, LLC 730 2017-08-20     
323-879 3 Los Angeles: DA 13 CA   981E BANDWIDTH.COM CLEC, LLC - CA 730 2013-05-25     
323-879 4 Los Angeles: DA 13 CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730 2012-01-06     
323-879 5 Los Angeles: DA 13 CA   899D METROPCS NETWORKS, LLC 730 2011-05-19     
323-879 6 Los Angeles: DA 13 CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730 2010-09-11     
323-879 7 Los Angeles: DA 13 CA   7379 MATRIX TELECOM, LLC. SII TNCI - CA 730 2006-06-15     
323-879 8 Los Angeles: DA 13 CA   649C NEUTRAL TANDEM-CALIFORNIA, LLC - CA 730 2008-07-29     
323-879 9 Los Angeles: DA 13 CA   516C AT&T CORP. 730 2011-01-10     

Last updated: Sat, 09 Jun 2018 13:21:19 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.