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Callsign:  KO4USR
Class:  General
Name:  Holley, Michael
City:  Mapleton
State:  UT
Zipcode:  84664
Status:  Active
Grant Date:  06/13/2026
Expires:  06/13/2036
Uls:  FCC Info

KO4USR - Ham operator in Mapleton, UT


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