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: 412 [Rate centres in NPA 412] [Dial plan for NPA 412]

NXX: 945

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
412-945 A Clairton PA   002F BANDWIDTH.COM CLEC, LLC - PA 234      
412-945 0 Clairton PA   002F BANDWIDTH.COM CLEC, LLC - PA 234   2008-12-19   
412-945 1 Clairton PA   145J TERRA NOVA TELECOM INC. 234   2025-05-07   
412-945 3 Clairton PA   318J COMCAST IP PHONE, LLC 234   2009-04-10   
412-945 5 Clairton PA   547E ONVOY, LLC - PA 234      
412-945 6 Clairton PA   547E ONVOY, LLC - PA 234      
412-945 7 Clairton PA   002F BANDWIDTH.COM CLEC, LLC - PA 234   2014-04-14   
412-945 8 Clairton PA   657B CITYNET PENNSYLVANIA, LLC - PA 234   2004-10-10   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.