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: 677

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
412-677 A Pittsburgh Suburban Zone 13 PA PITBPADTXEY  2514 US LEC OF PENNSYLVANIA, INC. 234      
412-677 0 Pittsburgh Suburban Zone 13 PA PITBPADTX2Z  002F BANDWIDTH.COM CLEC, LLC - PA 234   2019-07-01   
412-677 1 Pittsburgh Suburban Zone 13 PA PITBPADTXEY  2514 US LEC OF PENNSYLVANIA, INC. 234      
412-677 2 Pittsburgh Suburban Zone 13 PA PITBPADTXEY  2514 US LEC OF PENNSYLVANIA, INC. 234      
412-677 3 Pittsburgh Suburban Zone 13 PA PITBPADTXEY  2514 US LEC OF PENNSYLVANIA, INC. 234      
412-677 4 Pittsburgh Suburban Zone 13 PA PITBPADTXEY  2514 US LEC OF PENNSYLVANIA, INC. 234      
412-677 5 Pittsburgh Suburban Zone 13 PA PITBPADTXEY  2514 US LEC OF PENNSYLVANIA, INC. 234      
412-677 6 Pittsburgh Suburban Zone 13 PA   3806 CORE COMMUNICATIONS, INC. - PA 234   2019-03-27   
412-677 7 Pittsburgh Suburban Zone 13 PA   3806 CORE COMMUNICATIONS, INC. - PA 234   2019-03-27   
412-677 8 Pittsburgh Suburban Zone 13 PA PITBPADTXYY  547E ONVOY, LLC - PA 234   2023-06-23   
412-677 9 Pittsburgh Suburban Zone 13 PA PITBPADTX2Z  002F BANDWIDTH.COM CLEC, LLC - PA 234   2019-05-27   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.