Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1GTR callsign genealogy
Currently held by Rierden, Timothy 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 W1GTR's current licensee, walking backwards.
- Rierden, Timothy SKYgranted 2026-01-23cancelled 2026-02-18
Successor callsigns
Callsigns held now by people who previously held W1GTR.
- Beatty, Thomas JFLgranted 2022-12-20
All historical holders
Every license row we've seen with the callsign W1GTR, oldest first.
- Beatty, Thomas J FL2022-11-29 → cancelled 2022-12-20
- Rierden, Timothy S KY2026-02-18 active