K4SBW
Active1x3District 4
Competitive callsign — 3 applications filed with the FCC.
License HolderWalkup, Samuel B
License ClassTechnician
Min. Class RequiredGeneral
LocationForest, VA
Grant DateJan 22, 2026
Expiration DateMar 5, 2036
K4SBW is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Walkup, Samuel B in Forest, VA. This callsign has attracted significant interest in the amateur radio community, with 3 vanity applications filed with the FCC. The most recent was submitted by Walkup, Samuel B on Feb 16, 2016. K4SBW has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- ... -... .--
CW Weight: 30 units(Light (fast to send))
Voice Phonetics
Kilo Four Sierra Bravo Whiskey
Readability: 7.5/10(High readability)
License History
- License RenewedJan 22, 2026
- License IssuedMar 5, 2016
- Vanity Callsign GrantedMar 5, 2016
Vanity Application Activity
Competing applications filed with the FCC for this callsign.