Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 878 [Rate centres in NPA 878] [Dial plan for NPA 878]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
878-999 7 Pittsburgh Zone 1 PA PITBPADTXYY  547E ONVOY, LLC - PA 234   2016-01-07   
878-999 8 Pittsburgh Zone 1 PA PITBPADTXYY  547E ONVOY, LLC - PA 234   2016-01-07   
878-999 9 Pittsburgh Zone 1 PA PITBPADTXYY  547E ONVOY, LLC - PA 234   2015-11-16   

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Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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