N9AVY THOMAS C HEIEN P.O. Box 1894 North Mankato, MN 56002 United States Operator Class TECHNICIAN Previous Callsign Grant Date 05/10/2024 Expire Date 12/17/2032 Codes HVIB - Vanity code - Close Relative of Former Holder Ads from N9AVY on QTH.com Classifieds View Now! Put this form on your page! Enter a Callsign:   Courtesy of