Local Calling Guide

Area code/prefix search

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

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
641-301 A KNVLIAXCPMD  624H ONVOY SPECTRUM, LLC 632   2024-07-29   
641-301 0   624H ONVOY SPECTRUM, LLC 632   2024-07-29   
641-764 A MRDLIAXORS0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-764 0   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-764 1   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-764 2   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-764 3   490J DISH WIRELESS, LLC 632   2022-08-27   
641-764 4   544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 632   2018-05-15   
641-764 5   221F ONVOY, LLC - IA 632   2021-04-16   
641-764 6   221F ONVOY, LLC - IA 632   2019-11-29   
641-764 7   508J CENTURYLINK COMMUNICATIONS, LLC 632   2017-03-24   
641-764 8   221F ONVOY, LLC - IA 632   2021-04-16   
641-764 9   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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