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.

Stark City, MO

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
417-638 A STCYMOXARS0  1885 WINDSTREAM MISSOURI, INC. 522      
417-638 0   1885 WINDSTREAM MISSOURI, INC. 522      
417-638 1   093F ONVOY, LLC - MO 522   2021-04-23   
417-638 2   093F ONVOY, LLC - MO 522   2021-05-14   
417-638 3   093F ONVOY, LLC - MO 522   2020-10-25   
417-638 5   1885 WINDSTREAM MISSOURI, INC. 522      
417-638 6   593K MCC TELEPHONY LLC 522   2010-07-18   
417-638 7   624H ONVOY SPECTRUM, LLC 522   2024-03-28   
417-638 8   093F ONVOY, LLC - MO 522   2021-04-23   
417-638 9   993E BANDWIDTH.COM CLEC, LLC - MO 522   2020-03-22   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.