Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9TDK callsign genealogy
Currently held by Keown, Timothy D
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 K9TDK's current licensee, walking backwards.
- Keown, Timothy DILgranted 2017-08-10cancelled 2017-09-23
Successor callsigns
Callsigns held now by people who previously held K9TDK.
No current licensee on record previously held this callsign.