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: 644

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
660-644 A Breckenridge MO TINAMOXADS0  1890 GREEN HILLS TEL. CORP. 524      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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