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: 415

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
606-415 A McDowell KY WNCHKYMAEMD  896E ONVOY, LLC - KY 466      
606-415 0 McDowell KY WNCHKYMAXTY  624H ONVOY SPECTRUM, LLC 466   2024-06-15   
606-415 2 McDowell KY WNCHKYMAEMD  896E ONVOY, LLC - KY 466   2023-09-01   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.