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.

Felt-Wheeless, OK

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
580-426 A GYMNOKXADS0  2016 PANHANDLE TELEPHONE COOPERATIVE, INC. 546      
580-516 A GYMNOK041MD  468B PANHANDLE TELECOMMUNICATIONS SYSTEMS, INC. 546      

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.