Callsign: WB0MAR Class: Extra Name: HUMPAL, JOHN A Address: 5222 DYSART RD City: WATERLOO State: IA Zipcode: 50701 Status: Active Grant Date: 09/29/2016 Expires: 10/06/2026 Uls: FCC Info
Ham call sign WB0MAR in WATERLOO, IA
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