Local Calling Guide

Area code/prefix search

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NPA: 878 [Rate centres in NPA 878] [Dial plan for NPA 878]

NXX: 307

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
878-307 A Rochester PA   547E ONVOY, LLC - PA 234   2026-06-05   
878-307 0 Rochester PA   547E ONVOY, LLC - PA 234   2026-06-05   

Last updated: Sat, 02 May 2026 12:20:53 UTC

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