Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4DMT callsign genealogy
Currently held by Roberts, Trevor
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 KD4DMT's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KD4DMT.
- POWELL, WILLIAM CNCgranted 2022-10-18
All historical holders
Every license row we've seen with the callsign KD4DMT, oldest first.
- POWELL, WILLIAM C GA2002-07-17 → cancelled 2007-09-26
- Roberts, Trevor FL2026-01-21 active