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- AMATEUR RADIO LICENSE SEARCH
Callsign: KC7DJU
Class: Technician
Name: OSTROWSKI, RICHARD R
City: BLACK DIAMOND
State: WA
Zipcode: 98010
Status: Active
Grant Date: 05/19/2026
Expires: 05/19/2036
Uls: FCC Info
Database updated once a week
Ham Callsigns search - version 2.1