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: 312

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
660-312 A Knobnoster MO KSCAMO961MD  508J CENTURYLINK COMMUNICATIONS, LLC 524      
660-312 0 Knobnoster MO KSCYMO55XXX  093F ONVOY, LLC - MO 524   2017-04-03   
660-312 1 Knobnoster MO KSCYMO55XNY  073H TELNYX LLC 524   2018-10-19   
660-312 2 Knobnoster MO KSCYMO55XXX  093F ONVOY, LLC - MO 524   2020-11-07   
660-312 3 Knobnoster MO KSCYMO55XXX  093F ONVOY, LLC - MO 524   2020-11-07   
660-312 5 Knobnoster MO KSCYMO55XYY  624H ONVOY SPECTRUM, LLC 524   2024-03-20   
660-312 7 Knobnoster MO KSCAMO961MD  508J CENTURYLINK COMMUNICATIONS, LLC 524   2014-06-20   
660-312 8 Knobnoster MO KSCYMO55XXX  093F ONVOY, LLC - MO 524   2019-01-13   
660-312 9 Knobnoster MO KSCYMO55XXX  093F ONVOY, LLC - MO 524   2019-01-13   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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