Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 364 [Rate centres in NPA 364] [Dial plan for NPA 364]

NXX: 664

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
364-664 A Madisonville KY OWBOKYMAXSX  624H ONVOY SPECTRUM, LLC 464      
364-664 4 Madisonville KY MDVIKYMAXCX  781F MCC TELEPHONY OF THE SOUTH, LLC - KY 464   2023-12-31   
364-664 6 Madisonville KY OWBOKYMAXSX  624H ONVOY SPECTRUM, LLC 464   2022-08-13   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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