Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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Diagonal, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
641-273 A   624H ONVOY SPECTRUM, LLC 632   2024-07-02   
641-273 0   624H ONVOY SPECTRUM, LLC 632      
641-734 A DGNLIAXORS0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-734 0 DGNLIAXORS0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-734 1 DGNLIAXORS0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-734 2 DESMIADTXKX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632      
641-734 3 BOONIA01DS1  544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 632      
641-734 4 KNVLIAXCSMD  221F ONVOY, LLC - IA 632      
641-734 5 DGNLIAXORS0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-734 6 KNVLIAXCSMD  221F ONVOY, LLC - IA 632      
641-734 7 DESMIADTXJX  508J CENTURYLINK COMMUNICATIONS, LLC 632      
641-734 8 KNVLIAXCSMD  221F ONVOY, LLC - IA 632      
641-734 9 DGNLIAXORP0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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