Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 859 [Rate centres in NPA 859] [Dial plan for NPA 859]

NXX: 850

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
859-850 A Covington KY CNCNOHWSX8Z  624H ONVOY SPECTRUM, LLC 922   2025-05-02   
859-850 0 Covington KY CNCNOHWSX8Z  624H ONVOY SPECTRUM, LLC 922   2025-05-02   
859-850 8 Covington KY CNCNOHWSX8Z  624H ONVOY SPECTRUM, LLC 922   2025-05-02   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.