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: 868

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-868 A Steamboat Rock IA UNINIAXODS1  1297 HEART OF IOWA COMMUNICATIONS COOPERATIVE - IA 632      
641-868 1 Steamboat Rock IA   1297 HEART OF IOWA COMMUNICATIONS COOPERATIVE - IA 632      
641-868 2 Steamboat Rock IA   1297 HEART OF IOWA COMMUNICATIONS COOPERATIVE - IA 632      
641-868 6 Steamboat Rock IA   145J TERRA NOVA TELECOM INC. 632   2025-06-06   
641-868 8 Steamboat Rock IA   544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 632   2018-05-16   
641-868 9 Steamboat Rock IA   1297 HEART OF IOWA COMMUNICATIONS COOPERATIVE - IA 632      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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