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.

Disney, OK

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
539-371 A   5257 LEVEL 3 COMMUNICATIONS, LLC - OK 538   2026-02-12   
539-371 4   5257 LEVEL 3 COMMUNICATIONS, LLC - OK 538   2026-02-12   
918-435 A JAY OKXADS0  1994 GRAND TEL. CO., INC. 538      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.