Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4MTG callsign genealogy
Currently held by DUKE, JAMES C
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 KD4MTG's current licensee, walking backwards.
- Duke, James CKYgranted 2005-04-04cancelled 2005-04-29
Successor callsigns
Callsigns held now by people who previously held KD4MTG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD4MTG, oldest first.
- DUKE, JAMES C KY1992-04-07 → cancelled 2004-04-08
- Duke, James C KY2026-02-25 active