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: 203

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
660-203 A Alma MO NRBRMO010MD  6155 GREEN HILLS TELECOMMUNICATIONS SERVICES 524   2025-01-24   
660-203 1 Alma MO NRBRMO010MD  6155 GREEN HILLS TELECOMMUNICATIONS SERVICES 524   2025-01-24   

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

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