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.

Shidler, OK

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
539-247 A TULSOKTBXFZ  965H FRACTEL, LLC 538      
539-247 7 TULSOKTBXFZ  965H FRACTEL, LLC 538   2020-11-07   
918-793 A SHDLOKXADS0  2023 SHIDLER TEL. CO. 538      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.