Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WT0U callsign genealogy
Currently held by FOLTA, JERALD J
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 WT0U's current licensee, walking backwards.
- BARKS, KIRK AMOgranted 2017-06-06cancelled 2024-01-13
Successor callsigns
Callsigns held now by people who previously held WT0U.
- HANSEN, JOHN FSDgranted 2021-11-13
All historical holders
Every license row we've seen with the callsign WT0U, oldest first.
- FOLTA, JERALD J MN2008-12-02 → cancelled 2021-01-19
- HANSEN, JOHN F SD2021-02-06 → cancelled 2021-11-13
- BARKS, KIRK A MO2024-01-13 active