K4SDT
Cancelled1x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderJONES, JOHN D
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationJOHNSON CITY, TN
Grant DateMay 18, 2021
Cancellation DateNov 13, 2024
Available for ApplicationsNov 14, 2026
K4SDT is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by JONES, JOHN D in JOHNSON CITY, TN. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by Jones, John D on Apr 28, 2021. K4SDT has 8 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- ... -.. -
CW Weight: 25 units(Light (fast to send))
Voice Phonetics
Kilo Four Sierra Delta Tango
Readability: 7.5/10(High readability)
Available Nov 14, 2026 (71 days remaining)
Requires General license or higher to apply for this callsign format (1x3).
License History
- License CanceledNov 13, 2024
- License ModifiedJun 21, 2021
- License IssuedMay 18, 2021
- Vanity Callsign GrantedMay 18, 2021
- License ExpiredAug 23, 2019
- License RenewedMay 30, 2007
- Tax ID (TIN) AddedNov 10, 2004
- Administrative Update AppliedNov 10, 2004
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Jones, John DFiled Apr 28, 2021Not awardedFCC ↗