Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ4LG callsign genealogy
Currently held by WARNER, MICHAEL 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 KJ4LG's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KJ4LG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KJ4LG, oldest first.
- PETERSEN, HENRY IL1997-03-19 → cancelled 2009-03-20
- WARNER, MICHAEL R KY2019-12-03 active