W3CMP CHRISTOPHER M PATTERSON 590 VALLEY RD LANCASTER, PA 17601 United States Operator Class ADVANCED Previous Callsign Grant Date 06/21/2017 Expire Date 09/17/2027 Codes HVIE - Vanity code - Primary Station Preference List Ads from W3CMP on QTH.com Classifieds View Now! Put this form on your page! Enter a Callsign:   Courtesy of