Local Calling Guide

Area code/prefix search

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

NXX: 388

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
412-388 A Pittsburgh Zone 6 PA DRMTPADORP1  9208 VERIZON PENNSYLVANIA, INC. 234      
412-388 0 Pittsburgh Zone 6 PA   9208 VERIZON PENNSYLVANIA, INC. 234      
412-388 1 Pittsburgh Zone 6 PA   9208 VERIZON PENNSYLVANIA, INC. 234      
412-388 2 Pittsburgh Zone 6 PA   547E ONVOY, LLC - PA 234   2017-11-05   
412-388 4 Pittsburgh Zone 6 PA   547E ONVOY, LLC - PA 234   2017-11-05   
412-388 5 Pittsburgh Zone 6 PA   9208 VERIZON PENNSYLVANIA, INC. 234      
412-388 8 Pittsburgh Zone 6 PA   3806 CORE COMMUNICATIONS, INC. - PA 234   2018-10-24   
412-388 9 Pittsburgh Zone 6 PA   073H TELNYX LLC 234   2018-10-04   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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