Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Promise City, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
641-874 A PMCYIAXORS0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-874 0   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-874 1   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-874 2   221F ONVOY, LLC - IA 632   2021-04-16   
641-874 3   221F ONVOY, LLC - IA 632   2021-04-16   
641-874 4   544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 632   2018-05-16   
641-874 5   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-874 6   221F ONVOY, LLC - IA 632   2019-11-29   
641-874 7   508J CENTURYLINK COMMUNICATIONS, LLC 632   2017-03-28   
641-874 8   624H ONVOY SPECTRUM, LLC 632   2024-03-09   
641-874 9   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      

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

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