Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KU9Y callsign genealogy
Currently held by Heide, Ross J
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 KU9Y's current licensee, walking backwards.
- Heide, Ross JDCgranted 2022-04-05cancelled 2022-04-26
Successor callsigns
Callsigns held now by people who previously held KU9Y.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KU9Y, oldest first.
- JASICKI, HAROLD S WI2010-01-28 → cancelled 2022-03-31
- Heide, Ross J DC2022-04-26 active