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: 542

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
412-542 A Pittsburgh Suburban Zone 10 PA   4007 LEVEL 3 COMMUNICATIONS, LLC - PA 234      
412-542 1 Pittsburgh Suburban Zone 10 PA   4007 LEVEL 3 COMMUNICATIONS, LLC - PA 234      
412-542 3 Pittsburgh Suburban Zone 10 PA PITEPADT7MD  4007 LEVEL 3 COMMUNICATIONS, LLC - PA 234      
412-542 4 Pittsburgh Suburban Zone 10 PA   4007 LEVEL 3 COMMUNICATIONS, LLC - PA 234      
412-542 6 Pittsburgh Suburban Zone 10 PA PITBPADTXFX  624H ONVOY SPECTRUM, LLC 234   2021-05-20   
412-542 7 Pittsburgh Suburban Zone 10 PA PITBPAOKXLX  939H COMMIO, LLC 234   2021-09-03   
412-542 8 Pittsburgh Suburban Zone 10 PA PITEPA99DS0  283E YMAX COMMUNICATIONS CORP. - PA 234   2008-03-30   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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