Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD9TJN callsign genealogy
Currently held by Solon, Christopher J
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 KD9TJN's current licensee, walking backwards.
- NELSON, TROY JINgranted 2017-12-11cancelled 2026-06-30
Successor callsigns
Callsigns held now by people who previously held KD9TJN.
- Solon, Christopher JWIgranted 2022-05-13
All historical holders
Every license row we've seen with the callsign KD9TJN, oldest first.
- Solon, Christopher J WI2021-08-30 → cancelled 2022-05-13
- NELSON, TROY J IN2026-06-30 active