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.

OCN: 1866 OZARK TELEPHONE COMPANY

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
417-475 A Noel MO SENCMOXADS0  522      
417-762 A South West City MO SENCMOXADS0  522      
479-822 A South West City AR SENCMOXADS0  522      
918-854 A South West City OK SENCMOXADS0  522      

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

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