Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4DRI callsign genealogy
Currently held by Quist, Thomas 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 K4DRI's current licensee, walking backwards.
- Quist, Thomas JSCgranted 2025-05-06cancelled 2026-03-28
Successor callsigns
Callsigns held now by people who previously held K4DRI.
No current licensee on record previously held this callsign.