Local Calling Guide

Area code/prefix search

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

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
573-656 A OLNYMOXARP0  1885 WINDSTREAM MISSOURI, INC. 520      
573-656 0   1885 WINDSTREAM MISSOURI, INC. 520      
573-656 1   993E BANDWIDTH.COM CLEC, LLC - MO 520   2020-03-05   
573-656 2   093F ONVOY, LLC - MO 520   2021-03-07   
573-656 3   1885 WINDSTREAM MISSOURI, INC. 520      
573-656 4   1885 WINDSTREAM MISSOURI, INC. 520      
573-656 5   093F ONVOY, LLC - MO 520   2020-10-25   
573-656 6   145J TERRA NOVA TELECOM INC. 520   2025-05-30   

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

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