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 7, PA

1 2 3 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
412-250 A   829J PAETEC ITEL, LLC 234   2025-03-04   
412-250 0   829J PAETEC ITEL, LLC 234      
412-250 1   829J PAETEC ITEL, LLC 234      
412-250 2   829J PAETEC ITEL, LLC 234      
412-250 3   829J PAETEC ITEL, LLC 234      
412-250 4   829J PAETEC ITEL, LLC 234      
412-250 5   3806 CORE COMMUNICATIONS, INC. - PA 234   2004-04-29   
412-250 6   829J PAETEC ITEL, LLC 234      
412-250 7   283E YMAX COMMUNICATIONS CORP. - PA 234   2007-06-23   
412-250 8   829J PAETEC ITEL, LLC 234      
412-250 9   829J PAETEC ITEL, LLC 234      
412-331 A MCRKPAMRDS0  9208 VERIZON PENNSYLVANIA, INC. 234      
412-353 A   829J PAETEC ITEL, LLC 234   2025-03-04   
412-353 0   829J PAETEC ITEL, LLC 234      
412-353 1   829J PAETEC ITEL, LLC 234      
412-353 2   829J PAETEC ITEL, LLC 234      
412-353 3   002F BANDWIDTH.COM CLEC, LLC - PA 234   2011-09-26   
412-353 4   829J PAETEC ITEL, LLC 234      
412-353 5   6701 AERIAL COMMUNICATIONS, INC. 234   2009-04-22   
412-353 6   6701 AERIAL COMMUNICATIONS, INC. 234   2009-04-22   
412-353 7   283E YMAX COMMUNICATIONS CORP. - PA 234   2010-09-07   
412-353 8   829J PAETEC ITEL, LLC 234      
412-353 9   002F BANDWIDTH.COM CLEC, LLC - PA 234   2008-12-19   
412-438 A   4007 LEVEL 3 COMMUNICATIONS, LLC - PA 234      
412-438 0   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 234   2025-11-21   
412-438 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 234   2025-11-21   
412-438 2   547E ONVOY, LLC - PA 234   2024-07-08   
412-438 3   002F BANDWIDTH.COM CLEC, LLC - PA 234   2012-07-16   
412-438 5   4007 LEVEL 3 COMMUNICATIONS, LLC - PA 234      
412-438 6   4007 LEVEL 3 COMMUNICATIONS, LLC - PA 234      
412-438 7   624H ONVOY SPECTRUM, LLC 234   2021-05-20   
412-438 8   002F BANDWIDTH.COM CLEC, LLC - PA 234   2013-11-22   
412-438 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 234   2025-11-21   
412-444 A   829J PAETEC ITEL, LLC 234   2025-03-04   
412-444 0   829J PAETEC ITEL, LLC 234      
412-444 1   829J PAETEC ITEL, LLC 234      
412-444 2   829J PAETEC ITEL, LLC 234      
412-444 3   829J PAETEC ITEL, LLC 234      
412-444 4   829J PAETEC ITEL, LLC 234      
412-444 5   002F BANDWIDTH.COM CLEC, LLC - PA 234   2010-02-27   
412-444 6   6701 AERIAL COMMUNICATIONS, INC. 234   2023-08-07   
412-444 7   547E ONVOY, LLC - PA 234   2012-10-07   
412-444 8   002F BANDWIDTH.COM CLEC, LLC - PA 234   2014-07-19   
412-444 9   829J PAETEC ITEL, LLC 234      
412-458 A PITBPAIW0MD  318J COMCAST IP PHONE, LLC 234      
412-458 0   318J COMCAST IP PHONE, LLC 234   2004-11-22   
412-458 1   318J COMCAST IP PHONE, LLC 234   2006-05-28   
412-458 3   318J COMCAST IP PHONE, LLC 234   2007-04-03   
412-458 4   318J COMCAST IP PHONE, LLC 234   2007-04-03   
412-458 5   318J COMCAST IP PHONE, LLC 234   2007-04-03   
412-458 6   318J COMCAST IP PHONE, LLC 234   2015-03-13   
412-458 7   508J CENTURYLINK COMMUNICATIONS, LLC 234   2015-06-18   
412-458 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 234   2025-11-21   
412-458 9   515J IP HORIZON LLC 234   2013-08-29   
412-503 A   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 234      
412-503 0   515J IP HORIZON LLC 234   2018-01-11   
412-503 1   515J IP HORIZON LLC 234   2018-01-11   
412-503 2   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 234   2014-12-10   
412-503 3   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 234   2014-12-08   
412-503 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 234      
412-503 5   5562 METROPCS, INC. 234   2015-05-22   
412-503 7   002F BANDWIDTH.COM CLEC, LLC - PA 234   2016-07-18   
412-503 8   547E ONVOY, LLC - PA 234   2025-05-09   
412-503 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 234      
412-520 A CRAFPACRDS0  9208 VERIZON PENNSYLVANIA, INC. 234      
412-520 0   9208 VERIZON PENNSYLVANIA, INC. 234      
412-520 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 234   2025-11-21   
412-520 2   5562 METROPCS, INC. 234   2013-11-15   
412-520 3   547E ONVOY, LLC - PA 234   2014-10-28   
412-520 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 234   2014-05-25   
412-520 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 234   2014-06-24   
412-520 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 234   2014-06-24   
412-520 7   547E ONVOY, LLC - PA 234   2014-10-08   
412-520 8   967E PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 234   2013-05-05   
412-520 9   967E PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 234   2013-05-05   
412-524 A PITBPADTXYY  547E ONVOY, LLC - PA 234      
412-524 0   547E ONVOY, LLC - PA 234   2023-08-10   
412-524 1   547E ONVOY, LLC - PA 234   2023-08-10   
412-524 2   547E ONVOY, LLC - PA 234   2023-08-10   
412-524 3   547E ONVOY, LLC - PA 234   2023-06-23   
412-524 4   547E ONVOY, LLC - PA 234   2023-03-17   
412-524 5   547E ONVOY, LLC - PA 234   2023-03-17   
412-524 6   547E ONVOY, LLC - PA 234   2023-03-17   
412-524 7   547E ONVOY, LLC - PA 234   2023-03-17   
412-524 8   547E ONVOY, LLC - PA 234   2023-03-17   
412-524 9   547E ONVOY, LLC - PA 234   2023-08-10   
412-539 A GIBSPAXGDS1  8597 CONSOLIDATED COMMUNICATIONS ENTERPRISE SERVICES-PA 234      
412-539 0   8597 CONSOLIDATED COMMUNICATIONS ENTERPRISE SERVICES-PA 234      
412-539 1   8597 CONSOLIDATED COMMUNICATIONS ENTERPRISE SERVICES-PA 234      
412-539 2   073H TELNYX LLC 234   2017-07-03   
412-539 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 234   2013-10-02   
412-539 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 234   2015-04-07   
412-539 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 234   2015-04-07   
412-539 8   515J IP HORIZON LLC 234   2017-07-13   
412-539 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 234   2020-01-07   
412-587 A   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 234      
412-587 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 234      
412-587 1   6701 AERIAL COMMUNICATIONS, INC. 234   2008-01-10   
412-587 2   6701 AERIAL COMMUNICATIONS, INC. 234   2008-11-10   
412-587 3   6701 AERIAL COMMUNICATIONS, INC. 234   2009-04-06   

1 2 3 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.