W3MHP Frank J Kohn 6655 McCallum St -303 W Philadelphia, PA 19119-3154 United States Operator Class GENERAL Previous Callsign Grant Date 03/26/2021 Expire Date 06/01/2031 Codes HVIB - Vanity code - Close Relative of Former Holder Ads from W3MHP on QTH.com Classifieds View Now! Put this form on your page! Enter a Callsign:   Courtesy of