K8MSH MARK S HAVERSTOCK 6835 COLLEEN DR YOUNGSTOWN, OH 44512 United States Operator Class EXTRA Previous Callsign Grant Date 06/15/2016 Expire Date 09/09/2026 Codes HVIE - Vanity code - Primary Station Preference List Ads from K8MSH on QTH.com Classifieds View Now! Put this form on your page! Enter a Callsign:   Courtesy of