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: 909

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-909 A Lake Mills IA DESMIAITX6X  6529 T-MOBILE USA, INC. 632      
641-909 0 Lake Mills IA   6529 T-MOBILE USA, INC. 632   2018-04-02   
641-909 1 Lake Mills IA   6529 T-MOBILE USA, INC. 632   2018-04-02   
641-909 2 Lake Mills IA   5562 METROPCS, INC. 632   2018-10-17   
641-909 4 Lake Mills IA   6529 T-MOBILE USA, INC. 632   2008-05-11   
641-909 8 Lake Mills IA   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632   2021-12-20   
641-909 9 Lake Mills IA   544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 632   2018-05-15   

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

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