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: 566

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
660-566 A Clearmont MO KSCYMO55X0Z  965H FRACTEL, LLC 524      
660-566 5 Clearmont MO   145J TERRA NOVA TELECOM INC. 524   2025-07-24   
660-566 6 Clearmont MO   965H FRACTEL, LLC 524   2020-10-30   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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