KE9EFJ
Individual Licensee
Active
KE9EFJ is
an active
FCC Amateur Radio license
(Technician class) issued to Seong Yup Yoo
in North Aurora, IL
. Granted November 26, 2025
; expires November 26, 2035.
License Details
Licensee Name
Seong Yup Yoo
Entity Type
Individual
Operator Class
Grant Date
November 26, 2025
Expiration Date
November 26, 2035
Radio Service
Amateur Radio
(HA)
FCC Registration Number (FRN)
0037613031
Location & Details
Address
367 Moorfield Ave
City / State / ZIP
North Aurora, IL
60542
Browse State
Browse City
Call Sign Group
Group D
(2×3 or longer format, all classes)
Region Code
9
(FCC geographic call sign district)