Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KY9K callsign genealogy
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 KY9K's current licensee, walking backwards.
- Heaton, Brian DWAgranted 2011-09-07cancelled 2011-09-27
Successor callsigns
Callsigns held now by people who previously held KY9K.
- SCHWARZ SR, ROBERT FFLgranted 2018-03-20
All historical holders
Every license row we've seen with the callsign KY9K, oldest first.
- Heaton, Brian D TX2021-09-14 active
- —— → cancelled 1998-01-22