K4SBB
Active1x3District 4
Competitive callsign — 6 applications filed with the FCC.
License HolderStevenson, Geoffrey M
License ClassTechnician
Min. Class RequiredGeneral
LocationSouth Dennis, MA
Grant DateDec 6, 2025
Expiration DateNov 6, 2035
K4SBB is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Stevenson, Geoffrey M in South Dennis, MA. This callsign has attracted significant interest in the amateur radio community, with 6 vanity applications filed with the FCC. The most recent was submitted by Brown, Steven B on Oct 19, 2015. K4SBB has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- ... -... -...
CW Weight: 29 units(Light (fast to send))
Voice Phonetics
Kilo Four Sierra Bravo Bravo
Readability: 7.5/10(High readability)
License History
- License RenewedDec 6, 2025
- Administrative Update AppliedJun 10, 2016
- License IssuedNov 6, 2015
- Vanity Callsign GrantedNov 6, 2015
Vanity Application Activity
Competing applications filed with the FCC for this callsign.