Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KI6BTR callsign genealogy
Currently held by Kounovsky, Jon W
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 KI6BTR's current licensee, walking backwards.
- Kounovsky, Jon WCAgranted 2017-03-30cancelled 2020-09-04
Successor callsigns
Callsigns held now by people who previously held KI6BTR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KI6BTR, oldest first.
- Ferrone, Emilio CA2005-12-14 → cancelled 2017-12-15
- Kounovsky, Jon W CA2020-09-04 active