KØWRX CARROLL M CULLUM 1027 Columbine Drive Cedar Falls, IA 50613 United States Operator Class GENERAL Previous Callsign Grant Date 04/22/2016 Expire Date 06/18/2026 Codes HVIA - Vanity code - Former Primary Station Holder Ads from K0WRX on QTH.com Classifieds View Now! Put this form on your page! Enter a Callsign:   Courtesy of