Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N0TI callsign genealogy
Currently held by Trotz, Theodore R
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 N0TI's current licensee, walking backwards.
- Trotz, Theodore RCOgranted 2015-08-05cancelled 2018-11-24
Successor callsigns
Callsigns held now by people who previously held N0TI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0TI, oldest first.
- SCHELLHORN, ROBERT H CO2006-08-08 → cancelled 2018-11-06
- Trotz, Theodore R CO2018-11-24 active