Local Calling Guide

Area code/prefix search

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

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
641-639 A KNVLIAXCPMD  624H ONVOY SPECTRUM, LLC 632   2024-06-06   
641-639 0   624H ONVOY SPECTRUM, LLC 632   2024-06-06   
641-647 A MYSTIAXORS0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-647 0   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-647 1   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-647 2   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-647 3   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-647 4   544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 632   2018-05-15   
641-647 5   221F ONVOY, LLC - IA 632   2020-11-23   
641-647 6   221F ONVOY, LLC - IA 632   2019-11-29   
641-647 7   508J CENTURYLINK COMMUNICATIONS, LLC 632   2017-03-25   
641-647 8   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632   2012-02-27   
641-647 9   221F ONVOY, LLC - IA 632   2021-04-22   

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

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