K4DSM
Active1x3District 4
Competitive callsign — 7 applications filed with the FCC.
License HolderMantooth, Daniel S
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationOak Ridge, TN
Grant DateSep 16, 2025
Expiration DateSep 16, 2035
K4DSM is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Mantooth, Daniel S in Oak Ridge, TN. This callsign has attracted significant interest in the amateur radio community, with 7 vanity applications filed with the FCC. The most recent was submitted by Mantooth, Daniel S on Aug 28, 2025. K4DSM has 11 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- -.. ... --
CW Weight: 28 units(Light (fast to send))
Voice Phonetics
Kilo Four Delta Sierra Mike
Readability: 8/10(High readability)
License History
- Vanity Callsign GrantedSep 16, 2025
- License IssuedSep 16, 2025
- License CanceledMar 4, 2022
- Administrative Update AppliedSep 12, 2019
- License IssuedApr 8, 2016
- Vanity Callsign GrantedApr 8, 2016
- License CanceledJun 9, 2012
- License ModifiedApr 17, 2006
- License ModifiedMar 15, 2004
- Vanity Callsign GrantedMar 6, 2004
- License IssuedMar 6, 2004
Vanity Application Activity
Competing applications filed with the FCC for this callsign.