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: 320

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
412-320 A Pittsburgh Zone 1 PA PITBPANSDS0  9208 VERIZON PENNSYLVANIA, INC. 234      
412-320 0 Pittsburgh Zone 1 PA PITBPAWY2MD  6701 AERIAL COMMUNICATIONS, INC. 234   2005-07-20   
412-320 1 Pittsburgh Zone 1 PA PITBPAWY2MD  6701 AERIAL COMMUNICATIONS, INC. 234   2005-07-20   
412-320 2 Pittsburgh Zone 1 PA PITBPANSDS0  9208 VERIZON PENNSYLVANIA, INC. 234      
412-320 3 Pittsburgh Zone 1 PA PITBPAWY2MD  6701 AERIAL COMMUNICATIONS, INC. 234   2006-07-26   
412-320 4 Pittsburgh Zone 1 PA PITBPANSDS0  9208 VERIZON PENNSYLVANIA, INC. 234      
412-320 5 Pittsburgh Zone 1 PA PITBPAWY2MD  6701 AERIAL COMMUNICATIONS, INC. 234   2006-07-26   
412-320 6 Pittsburgh Zone 1 PA PITBPAWY2MD  6701 AERIAL COMMUNICATIONS, INC. 234   2006-07-26   
412-320 7 Pittsburgh Zone 1 PA PITBPANSDS0  9208 VERIZON PENNSYLVANIA, INC. 234      
412-320 8 Pittsburgh Zone 1 PA PITBPANSDS0  9208 VERIZON PENNSYLVANIA, INC. 234      
412-320 9 Pittsburgh Zone 1 PA PITBPAWY2MD  6701 AERIAL COMMUNICATIONS, INC. 234   2007-02-09   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.