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.

Pittsburgh Zone 2, PA

1 2 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
412-223 A PITBPAOKAMD  3806 CORE COMMUNICATIONS, INC. - PA 234      
412-223 0   3806 CORE COMMUNICATIONS, INC. - PA 234   2002-09-06   
412-223 1   829J PAETEC ITEL, LLC 234   2002-09-02   
412-223 2   4007 LEVEL 3 COMMUNICATIONS, LLC - PA 234   2002-10-28   
412-223 3   967E PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 234   2018-11-23   
412-223 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 234   2006-11-17   
412-223 5   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 234   2008-07-15   
412-223 6   283E YMAX COMMUNICATIONS CORP. - PA 234   2009-10-06   
412-223 7   002F BANDWIDTH.COM CLEC, LLC - PA 234   2008-12-19   
412-223 8   547E ONVOY, LLC - PA 234   2024-02-29   
412-223 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 234   2003-11-17   
412-238 A   4007 LEVEL 3 COMMUNICATIONS, LLC - PA 234      
412-238 1   4007 LEVEL 3 COMMUNICATIONS, LLC - PA 234      
412-238 2   547E ONVOY, LLC - PA 234   2024-07-05   
412-238 7   002F BANDWIDTH.COM CLEC, LLC - PA 234   2013-12-28   
412-238 8   283E YMAX COMMUNICATIONS CORP. - PA 234   2010-09-07   
412-238 9   114J EXIANT COMMUNICATIONS LLC 234   2025-06-23   
412-301 A PITBPAIW0MD  318J COMCAST IP PHONE, LLC 234      
412-301 0   318J COMCAST IP PHONE, LLC 234   2004-11-22   
412-301 1   283E YMAX COMMUNICATIONS CORP. - PA 234   2007-06-23   
412-301 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 234   2006-12-11   
412-301 3   002F BANDWIDTH.COM CLEC, LLC - PA 234   2010-02-27   
412-301 4   829J PAETEC ITEL, LLC 234   2010-04-01   
412-301 5   002F BANDWIDTH.COM CLEC, LLC - PA 234   2011-09-26   
412-301 6   002F BANDWIDTH.COM CLEC, LLC - PA 234   2012-10-14   
412-301 7   002F BANDWIDTH.COM CLEC, LLC - PA 234   2014-07-20   
412-301 8   318J COMCAST IP PHONE, LLC 234   2012-07-21   
412-301 9   547E ONVOY, LLC - PA 234   2013-02-11   
412-307 A   829J PAETEC ITEL, LLC 234   2025-03-04   
412-307 0   829J PAETEC ITEL, LLC 234      
412-307 1   829J PAETEC ITEL, LLC 234      
412-307 2   829J PAETEC ITEL, LLC 234      
412-307 3   4007 LEVEL 3 COMMUNICATIONS, LLC - PA 234   2005-01-14   
412-307 4   4007 LEVEL 3 COMMUNICATIONS, LLC - PA 234   2003-01-12   
412-307 5   4007 LEVEL 3 COMMUNICATIONS, LLC - PA 234   2005-01-25   
412-307 7   002F BANDWIDTH.COM CLEC, LLC - PA 234   2015-01-05   
412-307 8   967E PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 234   2013-05-05   
412-307 9   967E PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 234   2013-05-05   
412-312 A   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 234      
412-312 0   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2020-06-29   
412-312 1   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2016-06-07   
412-312 2   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2016-06-07   
412-312 3   547E ONVOY, LLC - PA 234   2012-02-10   
412-312 4   547E ONVOY, LLC - PA 234   2014-10-06   
412-312 5   547E ONVOY, LLC - PA 234   2014-10-06   
412-312 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 234      
412-312 7   508J CENTURYLINK COMMUNICATIONS, LLC 234   2015-06-18   
412-312 8   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2016-06-07   
412-312 9   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2020-07-22   
412-313 A   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 234      
412-313 0   967E PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 234   2016-11-19   
412-313 1   6701 AERIAL COMMUNICATIONS, INC. 234   2009-05-04   
412-313 2   515J IP HORIZON LLC 234   2013-04-29   
412-313 3   6701 AERIAL COMMUNICATIONS, INC. 234   2013-05-12   
412-313 4   6701 AERIAL COMMUNICATIONS, INC. 234   2013-05-12   
412-313 5   967E PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 234   2016-11-19   
412-313 6   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2016-04-27   
412-313 7   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2016-06-07   
412-313 8   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2016-06-07   
412-313 9   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2016-06-07   
412-415 A PITBPAMADS0  7315 TELEPORT COMMUNICATIONS AMERICA, LLC - PA 234      
412-415 0   318J COMCAST IP PHONE, LLC 234      
412-415 1   318J COMCAST IP PHONE, LLC 234      
412-415 2   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2016-02-24   
412-415 3   318J COMCAST IP PHONE, LLC 234   2004-05-15   
412-415 4   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2016-02-24   
412-415 5   7315 TELEPORT COMMUNICATIONS AMERICA, LLC - PA 234      
412-415 6   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2016-02-24   
412-415 7   547E ONVOY, LLC - PA 234   2018-09-14   
412-415 8   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2016-02-24   
412-415 9   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2016-02-24   
412-459 A GIBSPAXGDS1  8597 CONSOLIDATED COMMUNICATIONS ENTERPRISE SERVICES-PA 234      
412-459 0   8597 CONSOLIDATED COMMUNICATIONS ENTERPRISE SERVICES-PA 234      
412-459 1   8597 CONSOLIDATED COMMUNICATIONS ENTERPRISE SERVICES-PA 234      
412-459 2   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2016-02-24   
412-459 3   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2016-02-24   
412-459 4   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2016-02-24   
412-459 5   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2016-02-24   
412-459 6   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2016-02-24   
412-459 7   547E ONVOY, LLC - PA 234   2016-02-29   
412-459 8   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2012-11-07   
412-459 9   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2016-04-27   
412-499 A PITEPADT7MD  4007 LEVEL 3 COMMUNICATIONS, LLC - PA 234      
412-499 0   6701 AERIAL COMMUNICATIONS, INC. 234   2011-07-21   
412-499 1   6701 AERIAL COMMUNICATIONS, INC. 234   2014-03-27   
412-499 2   6701 AERIAL COMMUNICATIONS, INC. 234   2014-03-27   
412-499 3   4007 LEVEL 3 COMMUNICATIONS, LLC - PA 234   2003-04-13   
412-499 4   6701 AERIAL COMMUNICATIONS, INC. 234   2014-03-27   
412-499 5   6701 AERIAL COMMUNICATIONS, INC. 234   2014-03-27   
412-499 6   6701 AERIAL COMMUNICATIONS, INC. 234   2014-03-27   
412-499 7   6701 AERIAL COMMUNICATIONS, INC. 234   2014-03-27   
412-499 8   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2016-04-27   
412-499 9   752H BARR TELL USA, INC. - PA 234   2016-03-27   
412-590 A PYVLPAPB2MD  6630 USA MOBILITY WIRELESS, INC. 234      
412-591 A PYVLPAPB2MD  6630 USA MOBILITY WIRELESS, INC. 234      
412-707 A PITBPAWY2MD  6701 AERIAL COMMUNICATIONS, INC. 234      
412-707 0   967E PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 234   2019-12-31   
412-707 1   967E PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 234   2020-04-30   
412-707 2   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2020-06-29   
412-707 3   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 234   2020-06-29   

1 2 >>

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.