KD9EFN
Individual Licensee
Active
KD9EFN is
an active
FCC Amateur Radio license
(General class) issued to Justin K. Sommerfeld
in Spring Green, WI
. Granted November 27, 2025
; expires November 27, 2035.
License Details
Licensee Name
Justin K. Sommerfeld
Entity Type
Individual
Operator Class
Grant Date
November 27, 2025
Expiration Date
November 27, 2035
Radio Service
Amateur Radio
(HA)
FCC Registration Number (FRN)
0024748469
Location & Details
Address
E 3473 Donald Rd
City / State / ZIP
Spring Green, WI
53588
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Browse City
Previous Class
Technician
Call Sign Group
Group D
(2×3 or longer format, all classes)
Region Code
9
(FCC geographic call sign district)