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: 539 [Rate centres in NPA 539] [Dial plan for NPA 539]

NXX: 785

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
539-785 A Wister OK TULSOKTBX6Z  508J CENTURYLINK COMMUNICATIONS, LLC 538      
539-785 1 Wister OK   612K CSC VOICE, LLC 538   2024-04-15   
539-785 2 Wister OK TULTOKCL8MD  5257 LEVEL 3 COMMUNICATIONS, LLC - OK 538   2019-12-09   
539-785 7 Wister OK TULSOKTBX6Z  508J CENTURYLINK COMMUNICATIONS, LLC 538   2017-06-09   

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.