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: 755

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
412-755 A Pittsburgh Suburban Zone 18 PA   547E ONVOY, LLC - PA 234      
412-755 0 Pittsburgh Suburban Zone 18 PA PITBPAOKAMD  967E PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 234   2013-05-05   
412-755 1 Pittsburgh Suburban Zone 18 PA   547E ONVOY, LLC - PA 234   2025-05-09   
412-755 2 Pittsburgh Suburban Zone 18 PA PITBPADTXYY  547E ONVOY, LLC - PA 234   2021-02-26   
412-755 3 Pittsburgh Suburban Zone 18 PA PITBPADTXYY  547E ONVOY, LLC - PA 234   2021-02-26   
412-755 6 Pittsburgh Suburban Zone 18 PA PITBPADTXFX  624H ONVOY SPECTRUM, LLC 234   2021-08-07   
412-755 7 Pittsburgh Suburban Zone 18 PA PITBPADTXFX  624H ONVOY SPECTRUM, LLC 234   2021-12-09   
412-755 8 Pittsburgh Suburban Zone 18 PA PITBPAOKAMD  967E PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 234   2013-05-05   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.