KV4SM Sergio Morales-Mendez 1221 N Valrico Rd Lot 3 Valrico, FL 33594 United States Operator Class EXTRA Previous Callsign Grant Date 06/23/2023 Expire Date 07/23/2033 Codes HVIE - Vanity code - Primary Station Preference List Ads from KV4SM on QTH.com Classifieds View Now! Put this form on your page! Enter a Callsign:   Courtesy of