Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 641 [Rate centres in NPA 641] [Dial plan for NPA 641]

NXX: 825

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-825 A Iowa Falls IA DESMIADTX1Y  515J IP HORIZON LLC 632   2025-10-24   
641-825 1 Iowa Falls IA DESMIADTX1Y  515J IP HORIZON LLC 632   2025-10-24   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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