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: 613

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
660-613 A Leeton MO WRBGMOXAXCX  093F ONVOY, LLC - MO 524      
660-613 2 Leeton MO   093F ONVOY, LLC - MO 524   2021-05-14   
660-613 6 Leeton MO   093F ONVOY, LLC - MO 524   2018-10-28   

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

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