Local Calling Guide

Area code/prefix search

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

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
641-258 A DESMIADTX6Y  516J TON80 COMMUNICATIONS, LLC 632      
641-258 2   516J TON80 COMMUNICATIONS, LLC 632   2022-04-22   
641-258 3   624H ONVOY SPECTRUM, LLC 632   2024-03-08   
641-742 A ADARIAXORS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 632      
641-742 0   1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 632      
641-742 1   1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 632      
641-742 2   444G AUREON COMMUNICATIONS, LLC 632   2018-02-09   
641-742 3   1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 632      
641-742 4   544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 632   2018-05-14   
641-742 5   1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 632      
641-742 6   221F ONVOY, LLC - IA 632   2019-11-29   
641-742 7   508J CENTURYLINK COMMUNICATIONS, LLC 632   2017-04-04   
641-742 8   221F ONVOY, LLC - IA 632   2021-04-16   
641-742 9   1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 632      

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

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