Local Calling Guide

Area code/prefix search

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NPA: 641 [Rate centres in NPA 641] [Dial plan for NPA 641]

NXX: 251

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-251 A Forest City IA DESMIAITX6X  6529 T-MOBILE USA, INC. 632      
641-251 1 Forest City IA   6266 UNITED STATES CELLULAR - IA 632   2007-02-10   
641-251 2 Forest City IA   6266 UNITED STATES CELLULAR - IA 632   2015-05-08   
641-251 3 Forest City IA   624H ONVOY SPECTRUM, LLC 632   2024-03-08   
641-251 4 Forest City IA   6529 T-MOBILE USA, INC. 632   2008-05-11   
641-251 5 Forest City IA   544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 632   2018-05-15   
641-251 6 Forest City IA   221F ONVOY, LLC - IA 632   2021-05-06   
641-251 8 Forest City IA   751F MCC TELEPHONY OF IOWA, LLC - IA 632   2010-04-15   
641-251 9 Forest City IA   145J TERRA NOVA TELECOM INC. 632   2025-05-27   

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

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