NT4DX George L White 10719 Parkgate Dr Nokesville, VA 20181-2921 United States Operator Class EXTRA Previous Callsign Grant Date 03/13/2017 Expire Date 04/13/2027 Codes HVIE - Vanity code - Primary Station Preference List Ads from NT4DX on QTH.com Classifieds View Now! Put this form on your page! Enter a Callsign:   Courtesy of