Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Montour, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
641-492 A MNTRIAXORS0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 632      
641-492 1   1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 632      
641-492 2   544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 632   2018-05-15   
641-492 3   221F ONVOY, LLC - IA 632   2021-09-03   
641-492 4   221F ONVOY, LLC - IA 632   2021-05-08   
641-492 5   624H ONVOY SPECTRUM, LLC 632   2024-03-08   
641-492 6   1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 632      
641-492 7   508J CENTURYLINK COMMUNICATIONS, LLC 632   2017-03-24   
641-492 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632   2021-12-01   
641-492 9   1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 632      

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

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