Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ4KSC callsign genealogy
Currently held by Everett, Michael T
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 KJ4KSC's current licensee, walking backwards.
- KROENING, JOHN LFLgranted 2011-07-13cancelled 2011-08-06
Successor callsigns
Callsigns held now by people who previously held KJ4KSC.
All historical holders
Every license row we've seen with the callsign KJ4KSC, oldest first.
- Everett, Michael T AL2009-03-26 → cancelled 2009-04-17
- KROENING, JOHN L FL2021-07-22 → cancelled 2023-01-04