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: 606 [Rate centres in NPA 606] [Dial plan for NPA 606]

NXX: 459

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
606-459 A Prestonsburg KY WNCHKYMAEMD  896E ONVOY, LLC - KY 466   2024-01-04   
606-459 0 Prestonsburg KY WNCHKYMAEMD  896E ONVOY, LLC - KY 466   2024-04-05   
606-459 1 Prestonsburg KY LXTNKYXAXOZ  515J IP HORIZON LLC 466   2024-04-25   
606-459 5 Prestonsburg KY WNCHKYMAEMD  896E ONVOY, LLC - KY 466      
606-459 9 Prestonsburg KY WNCHKYMAEMD  896E ONVOY, LLC - KY 466   2024-03-02   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.