Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N8TSU callsign genealogy
Currently held by Sutton, Thomas K
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 N8TSU's current licensee, walking backwards.
- Sutton, Thomas KOHgranted 2018-03-27cancelled 2018-07-10
Successor callsigns
Callsigns held now by people who previously held N8TSU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N8TSU, oldest first.
- HELTERBRAND, DAVID R OH2003-03-07 → cancelled 2015-06-02
- Sutton, Thomas K OH2018-07-10 active