Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 412 [Rate centres in NPA 412] [Dial plan for NPA 412]

NXX: 203

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
412-203 A Pittsburgh Suburban Zone 15 PA PITEPADT7MD  4007 LEVEL 3 COMMUNICATIONS, LLC - PA 234      
412-203 0 Pittsburgh Suburban Zone 15 PA   3806 CORE COMMUNICATIONS, INC. - PA 234   2004-04-29   
412-203 1 Pittsburgh Suburban Zone 15 PA PITEPADT7MD  4007 LEVEL 3 COMMUNICATIONS, LLC - PA 234      
412-203 2 Pittsburgh Suburban Zone 15 PA PITBPADTXFX  624H ONVOY SPECTRUM, LLC 234   2022-02-12   
412-203 3 Pittsburgh Suburban Zone 15 PA PITEPADT7MD  4007 LEVEL 3 COMMUNICATIONS, LLC - PA 234      
412-203 4 Pittsburgh Suburban Zone 15 PA PITEPADT7MD  4007 LEVEL 3 COMMUNICATIONS, LLC - PA 234   2005-12-23   
412-203 5 Pittsburgh Suburban Zone 15 PA PITBPADTX2Z  002F BANDWIDTH.COM CLEC, LLC - PA 234   2011-09-26   
412-203 6 Pittsburgh Suburban Zone 15 PA   3806 CORE COMMUNICATIONS, INC. - PA 234   2018-10-24   
412-203 7 Pittsburgh Suburban Zone 15 PA MPTSPA020MD  422C ARMSTRONG TELECOMMUNICATIONS, INC. - PA 234   2008-10-26   
412-203 8 Pittsburgh Suburban Zone 15 PA PITEPADT7MD  4007 LEVEL 3 COMMUNICATIONS, LLC - PA 234   2006-12-13   
412-203 9 Pittsburgh Suburban Zone 15 PA   547E ONVOY, LLC - PA 234   2024-03-09   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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