Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 660 [Rate centres in NPA 660] [Dial plan for NPA 660]

NXX: 398

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
660-398 A Hardin MO HRDNMOXARS0  1811 EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO 524      
660-398 0 Hardin MO   1811 EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO 524      
660-398 1 Hardin MO   1811 EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO 524      
660-398 3 Hardin MO   093F ONVOY, LLC - MO 524   2020-11-07   
660-398 4 Hardin MO   1811 EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO 524      
660-398 5 Hardin MO   093F ONVOY, LLC - MO 524   2019-12-14   
660-398 6 Hardin MO   093F ONVOY, LLC - MO 524   2019-12-14   
660-398 8 Hardin MO   093F ONVOY, LLC - MO 524   2020-11-07   
660-398 9 Hardin MO   993E BANDWIDTH.COM CLEC, LLC - MO 524   2009-02-13   

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

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