Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9TRS callsign genealogy
Currently held by Sanville, Thomas R
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 K9TRS's current licensee, walking backwards.
- Sanville, Thomas RWIgranted 2019-11-14cancelled 2020-01-24
Successor callsigns
Callsigns held now by people who previously held K9TRS.
No current licensee on record previously held this callsign.