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: 743

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
412-743 A Clairton PA PITBPADTXYY  547E ONVOY, LLC - PA 234      
412-743 0 Clairton PA PITBPADTXYY  547E ONVOY, LLC - PA 234   2019-04-27   
412-743 1 Clairton PA PITBPADTXYY  547E ONVOY, LLC - PA 234   2019-04-27   
412-743 2 Clairton PA PITBPADTXYY  547E ONVOY, LLC - PA 234   2019-04-27   
412-743 3 Clairton PA PITBPADTXYY  547E ONVOY, LLC - PA 234   2019-04-27   
412-743 4 Clairton PA PITBPADTXYY  547E ONVOY, LLC - PA 234   2019-04-27   
412-743 5 Clairton PA PITBPADTXYY  547E ONVOY, LLC - PA 234   2019-04-27   
412-743 6 Clairton PA PITBPADTXYY  547E ONVOY, LLC - PA 234   2019-04-27   
412-743 7 Clairton PA PITBPADTXYY  547E ONVOY, LLC - PA 234   2019-04-27   
412-743 8 Clairton PA PITBPADTXYY  547E ONVOY, LLC - PA 234   2019-04-27   
412-743 9 Clairton PA PITBPADTXYY  547E ONVOY, LLC - PA 234   2019-04-27   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.