Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Dierks, AR

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
870-286 A DRKSARXARS0  1691 WINDSTREAM ARKANSAS, INC. 528      
870-825 A DRKSARXARS0  1691 WINDSTREAM ARKANSAS, INC. 528      
870-825 0   1691 WINDSTREAM ARKANSAS, INC. 528      
870-825 1   624H ONVOY SPECTRUM, LLC 528   2025-01-07   
870-825 2   5179 LEVEL 3 COMMUNICATIONS, LLC - AR 528   2006-09-28   
870-825 5   348F ONVOY, LLC - AR 528   2021-06-25   
870-825 7   508J CENTURYLINK COMMUNICATIONS, LLC 528   2015-01-13   
870-825 9   1691 WINDSTREAM ARKANSAS, INC. 528      

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

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