Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9YZ callsign genealogy
Currently held by Schabo, Richard E
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 KC9YZ's current licensee, walking backwards.
- Schabo, Richard EWIgranted 2013-02-07cancelled 2020-01-25
Successor callsigns
Callsigns held now by people who previously held KC9YZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC9YZ, oldest first.
- MEYER, ROBERT C IL2003-10-29 → cancelled 2016-01-05
- Schabo, Richard E WI2020-01-25 active