Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 574 [Rate centres in NPA 574] [Dial plan for NPA 574]

NXX: 384

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
574-384 A Knox IN PLMOINXAX2X  097D ONVOY, LLC - IN 332      
574-384 0 Knox IN   097D ONVOY, LLC - IN 332   2024-03-14   
574-384 4 Knox IN   097D ONVOY, LLC - IN 332   2022-01-08   
574-384 5 Knox IN   097D ONVOY, LLC - IN 332   2022-01-08   

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

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