Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N9SJT callsign genealogy
Currently held by LEE, RICHARD 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 N9SJT's current licensee, walking backwards.
- Thinnes, Sandra JWIgranted 2013-07-29cancelled 2015-06-13
Successor callsigns
Callsigns held now by people who previously held N9SJT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9SJT, oldest first.
- LEE, RICHARD A IL1993-02-23 → cancelled 2005-02-24
- Thinnes, Sandra J WI2025-06-05 active