Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 740 [Rate centres in NPA 740] [Dial plan for NPA 740]

NXX: 878

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-878 A Byesville OH   624H ONVOY SPECTRUM, LLC 324   2025-03-06   
740-878 0 Byesville OH   624H ONVOY SPECTRUM, LLC 324   2025-03-06   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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