Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Naylor, MO

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
573-399 A NYLRMOXXRS0  1885 WINDSTREAM MISSOURI, INC. 520      
573-399 0   1885 WINDSTREAM MISSOURI, INC. 520      
573-399 1   624H ONVOY SPECTRUM, LLC 520   2025-01-11   
573-399 2   1885 WINDSTREAM MISSOURI, INC. 520      
573-399 3   093F ONVOY, LLC - MO 520   2021-07-24   
573-399 8   993E BANDWIDTH.COM CLEC, LLC - MO 520   2020-02-28   
573-399 9   1885 WINDSTREAM MISSOURI, INC. 520      

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

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