Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KT4RJ callsign genealogy
Currently held by SEXTON, MICHAEL S
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 KT4RJ's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KT4RJ.
- SEXTON, MICHAEL SFLgranted 2020-03-14
All historical holders
Every license row we've seen with the callsign KT4RJ, oldest first.
- SEXTON, MICHAEL S FL2017-03-12 → cancelled 2020-03-14
- SEXTON, MICHAEL S— → cancelled 1997-09-17