Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 606 [Rate centres in NPA 606] [Dial plan for NPA 606]

NXX: 644

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
606-644 A Ashland KY ASLDKYXAX2X  896E ONVOY, LLC - KY 466   2024-01-04   

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

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