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.

Mannford, OK

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
539-724 A TULSOKTBXFZ  965H FRACTEL, LLC 538      
539-724 6 TULSOKTBXFZ  965H FRACTEL, LLC 538   2020-11-07   
918-865 A MNFROKXADS0  1982 CIMARRON TEL. CO. 538      

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.