KB0SXF
Individual Licensee
Active
KB0SXF is
an active
FCC Amateur Radio license
(Technician class) issued to RALPH E. UNDERWOOD
in CASTLE ROCK, CO
. Granted June 18, 2025
; expires July 2, 2035.
License Details
Licensee Name
RALPH E. UNDERWOOD
Entity Type
Individual
Operator Class
Grant Date
June 18, 2025
Expiration Date
July 2, 2035
Radio Service
Amateur Radio
(HA)
FCC Registration Number (FRN)
0011417805
Location & Details
Address
3885 RAWHIDE CIRCLE
City / State / ZIP
CASTLE ROCK, CO
80104
Browse State
Browse City
Trustee
Ralph E Underwood
Call Sign Group
Group D
(2×3 or longer format, all classes)
Region Code
10
(FCC geographic call sign district)