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: 916

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-916 A St Charles IA DESMIADTXKX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632      
641-916 6 St Charles IA   490J DISH WIRELESS, LLC 632   2023-05-02   
641-916 9 St Charles IA   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632   2022-01-17   

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

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