Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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St Charles, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
641-396 A STMYIAXODS1  1209 FMTC-I35, INC. D/B/A OMNITEL COMMUNICATIONS 632      
641-916 A DESMIADTXKX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632      
641-916 6 DESMIAITX9X  490J BOOST SUBSCRIBERCO L.L.C. 632   2023-05-02   
641-916 9 DESMIADTXKX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632   2022-01-17   

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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