Callsign: KB7OPT Class: General Name: HOFFMAN, MARK H Address: 2549 11TH AVE W City: SEATTLE State: WA Zipcode: 98119 Status: Expired Grant Date: 11/16/2011 Expires: 02/11/2022 Uls: FCC Info
Ham call sign KB7OPT in SEATTLE, WA
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