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.

Winfield MCA5, MO

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
636-566 A WNFDMOXARS0  9787 CENTURYTEL MISSOURI LLC (SOUTHWEST)DBA CENTURYLINK 520      
636-566 0 STLSMO05RMD  993E BANDWIDTH.COM CLEC, LLC - MO 520   2009-01-17   
636-566 1 STLSMO05XMX  624H ONVOY SPECTRUM, LLC 520   2021-11-16   
636-566 2 STLSMOWQDS2  093F ONVOY, LLC - MO 520   2021-08-15   
636-566 4 STLSMO05XMX  624H ONVOY SPECTRUM, LLC 520   2021-05-24   
636-566 5 STLSMO05XMX  624H ONVOY SPECTRUM, LLC 520   2021-05-24   
636-566 6 WNFDMOXARS0  9787 CENTURYTEL MISSOURI LLC (SOUTHWEST)DBA CENTURYLINK 520      
636-566 7 STLSMOWQDS2  093F ONVOY, LLC - MO 520   2005-07-29   
636-566 8 WNFDMOXARS0  9787 CENTURYTEL MISSOURI LLC (SOUTHWEST)DBA CENTURYLINK 520      
636-566 9 OVLDMOBKDS0  5607 CHARTER FIBERLINK - MISSOURI, LLC - MO 520   2017-07-22   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.