Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KG4MJF callsign genealogy
Currently held by FENLON, MICHAEL 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 KG4MJF's current licensee, walking backwards.
- FENLON, MICHAEL JTNgranted 2021-07-01cancelled 2021-07-20
Successor callsigns
Callsigns held now by people who previously held KG4MJF.
- Schmitt, Roger YKYgranted 2001-07-10cancelled 2009-06-05
All historical holders
Every license row we've seen with the callsign KG4MJF, oldest first.
- Schmitt, Roger Y KY2001-03-14 → cancelled 2001-07-10
- FENLON, MICHAEL J TN2021-07-20 active