Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9JEM callsign genealogy
Currently held by MC MICHAEL JR, JOHN R
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 K9JEM's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K9JEM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9JEM, oldest first.
- MC MICHAEL JR, JOHN R IL1988-08-23 → cancelled 2000-08-24
- McDermott, J E IL2017-12-27 active