Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KT4WD callsign genealogy
Currently held by Barker, David W
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by KT4WD's current licensee, walking backwards.
- Barker, David WTNgranted 2021-04-20cancelled 2021-05-11
Successor callsigns
Callsigns held now by people who previously held KT4WD.
- ARNOLD, JASON PCOgranted 2011-07-23cancelled 2019-03-26
All historical holders
Every license row we've seen with the callsign KT4WD, oldest first.
- ARNOLD, JASON P CO2005-12-07 → cancelled 2011-07-23
- Barker, David W TN2021-05-11 active