Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR9X callsign genealogy
Currently held by WEICHBRODT, JON A
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 KR9X's current licensee, walking backwards.
- Hill, Gregory LILgranted 1997-10-14cancelled 2003-03-08
Successor callsigns
Callsigns held now by people who previously held KR9X.
- WEICHBRODT, JON AFLgranted 2010-05-22cancelled 2011-02-15
All historical holders
Every license row we've seen with the callsign KR9X, oldest first.
- WEICHBRODT, JON A IL1997-09-12 → cancelled 2000-06-13
- Hill, Gregory L IL2023-02-08 active