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
323-987 A Los Angeles: DA 04 CA LSANCAGJDS4  7453 U.S. TELEPACIFIC CORP. - CA 730     map
323-987 0 Los Angeles: DA 04 CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730 2015-04-23     
323-987 1 Los Angeles: DA 04 CA   7453 U.S. TELEPACIFIC CORP. - CA 730      
323-987 2 Los Angeles: DA 04 CA   7453 U.S. TELEPACIFIC CORP. - CA 730      
323-987 3 Los Angeles: DA 04 CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730 2014-08-17     
323-987 4 Los Angeles: DA 04 CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730 2014-01-04     
323-987 5 Los Angeles: DA 04 CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730 2011-08-29     
323-987 6 Los Angeles: DA 04 CA   339F TELCENTRIS COMMUNICATIONS, LLC - CA 730 2014-06-25     
323-987 7 Los Angeles: DA 04 CA   649C NEUTRAL TANDEM-CALIFORNIA, LLC - CA 730 2013-09-21     
323-987 8 Los Angeles: DA 04 CA   7453 U.S. TELEPACIFIC CORP. - CA 730      
323-987 9 Los Angeles: DA 04 CA   7453 U.S. TELEPACIFIC CORP. - CA 730      

Last updated: Sat, 14 Apr 2018 22:33:36 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.