KK4ACE Christopher D Oh 425 Hurfville Crosskeys Rd, PO BOX 8784 Blackwood, NJ 08012 United States Operator Class GENERAL Previous Callsign Grant Date 05/08/2024 Expire Date 03/16/2034 Codes HVIE - Vanity code - Primary Station Preference List Ads from KK4ACE on QTH.com Classifieds View Now! Put this form on your page! Enter a Callsign:   Courtesy of