Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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South Harmony, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
563-353 A MDFDMNAT6MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 620      
563-883 A HRMYMNXHRS0  1404 HARMONY TEL. CO. 620      

Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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