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- AMATEUR RADIO LICENSE SEARCH
Callsign: KO4UBZ
Class: General
Name: SIMMS, HYRUM A
City: Rock Hill
State: SC
Zipcode: 29730
Status: Active
Grant Date: 10/18/2021
Expires: 10/18/2031
Uls: FCC Info
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Ham Callsigns search - version 2.1
