KR4IUI
Individual Licensee
Active
KR4IUI is
an active
FCC Amateur Radio license
(Technician class) issued to Martin A. Johnson
in Hillsboro, TN
. Granted January 9, 2026
; expires January 9, 2036.
License Details
Licensee Name
Martin A. Johnson
Entity Type
Individual
Operator Class
Grant Date
January 9, 2026
Expiration Date
January 9, 2036
Radio Service
Amateur Radio
(HA)
FCC Registration Number (FRN)
0037655032
Location & Details
Address
145 Old Hillsboro Hwy
City / State / ZIP
Hillsboro, TN
37342
Browse State
Browse City
Call Sign Group
Group D
(2×3 or longer format, all classes)
Region Code
4
(FCC geographic call sign district)