Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9TDX callsign genealogy
Currently held by Burns, John T
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 K9TDX's current licensee, walking backwards.
- Burns, John TINgranted 2010-06-22cancelled 2020-04-28
Successor callsigns
Callsigns held now by people who previously held K9TDX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9TDX, oldest first.
- HILMES, RAYMOND A IL2004-06-01 → cancelled 2016-08-17
- Burns, John T IN2020-04-28 active