Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9TPR callsign genealogy
Currently held by Brengel, Thomas
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 N9TPR's current licensee, walking backwards.
- Brengel, ThomasILgranted 2020-11-16cancelled 2021-03-16
Successor callsigns
Callsigns held now by people who previously held N9TPR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9TPR, oldest first.
- SCHEFF, HENRY J IL2003-10-14 → cancelled 2005-12-28
- Brengel, Thomas IL2021-03-16 active