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.

Myrtle, MO

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
417-909 A MYRTMOXAPS0  1885 WINDSTREAM MISSOURI, INC. 522      
417-909 2   093F ONVOY, LLC - MO 522   2021-05-14   
417-909 4   1885 WINDSTREAM MISSOURI, INC. 522   2012-01-26   
417-909 9   145J TERRA NOVA TELECOM INC. 522   2025-07-19   
417-938 A MYRTMOXAPS0  1885 WINDSTREAM MISSOURI, INC. 522      
417-938 0   1885 WINDSTREAM MISSOURI, INC. 522      
417-938 4   1885 WINDSTREAM MISSOURI, INC. 522      
417-938 7   093F ONVOY, LLC - MO 522   2020-10-25   
417-938 9   993E BANDWIDTH.COM CLEC, LLC - MO 522   2020-03-19   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.