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.

Flint, OK

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
539-798 A TULTOKCL8MD  5257 LEVEL 3 COMMUNICATIONS, LLC - OK 538      
539-798 2   5257 LEVEL 3 COMMUNICATIONS, LLC - OK 538   2017-07-29   
918-597 A FLNTOKXADS1  2022 SALINA-SPAVINAW TEL. CO. 538      

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

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