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: 837

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
412-837 A Pittsburgh Suburban Zone 17 PA PITBPAMAEMD  3210 CAVALIER TELEPHONE MID-ATLANTIC, LLC - PA 234      
412-837 0 Pittsburgh Suburban Zone 17 PA PITBPADTXYY  547E ONVOY, LLC - PA 234   2016-03-18   
412-837 1 Pittsburgh Suburban Zone 17 PA PITBPAIW0MD  318J COMCAST IP PHONE, LLC 234   2011-05-18   
412-837 2 Pittsburgh Suburban Zone 17 PA PITBPAIW0MD  318J COMCAST IP PHONE, LLC 234   2007-09-28   
412-837 3 Pittsburgh Suburban Zone 17 PA PITBPADTX2Z  002F BANDWIDTH.COM CLEC, LLC - PA 234   2011-12-31   
412-837 4 Pittsburgh Suburban Zone 17 PA PITBPAFHDS0  7978 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 234   2008-07-15   
412-837 5 Pittsburgh Suburban Zone 17 PA PITBPADTXEY  2514 US LEC OF PENNSYLVANIA, INC. 234   2011-04-20   
412-837 6 Pittsburgh Suburban Zone 17 PA PITBPAMAEMD  3210 CAVALIER TELEPHONE MID-ATLANTIC, LLC - PA 234   2007-08-23   
412-837 7 Pittsburgh Suburban Zone 17 PA PITBPAOKAMD  967E PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 234   2020-06-15   
412-837 8 Pittsburgh Suburban Zone 17 PA PITBPADTXYY  547E ONVOY, LLC - PA 234   2012-10-07   
412-837 9 Pittsburgh Suburban Zone 17 PA PITBPADTX2Z  002F BANDWIDTH.COM CLEC, LLC - PA 234   2008-12-19   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.