Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KE6MCT callsign genealogy
Currently held by GARTHWAITE, MICHAEL D
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 KE6MCT's current licensee, walking backwards.
- Garthwaite, Donald MCAgranted 2017-08-28cancelled 2017-09-16
Successor callsigns
Callsigns held now by people who previously held KE6MCT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KE6MCT, oldest first.
- GARTHWAITE, MICHAEL D CA2004-08-17 → cancelled 2016-09-10
- Garthwaite, Donald M CA2017-09-16 active