KO4YAO Michael J Borden 7942 Nancy Ct Norfolk, VA 23518 United States Operator Class EXTRA Previous Callsign Grant Date 09/13/2024 Expire Date 02/23/2032 Codes HAI - Ham Radio - Individual Ads from KO4YAO on QTH.com Classifieds View Now! Put this form on your page! Enter a Callsign:   Courtesy of