Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK4TR callsign genealogy
Currently held by Dube Jr, Joseph A
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 KK4TR's current licensee, walking backwards.
- Roth, Tim WGAgranted 2020-02-03cancelled 2022-03-01
Successor callsigns
Callsigns held now by people who previously held KK4TR.
- Dube Jr, Joseph AFLgranted 2017-04-15
All historical holders
Every license row we've seen with the callsign KK4TR, oldest first.
- Dube Jr, Joseph A FL2007-01-22 → cancelled 2007-07-13
- Roth, Tim W GA2022-03-01 active