Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9RB callsign genealogy
Currently held by Bonanno, Russell 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 KC9RB's current licensee, walking backwards.
- Bonanno, Russell JINgranted 2021-04-20cancelled 2023-06-02
Successor callsigns
Callsigns held now by people who previously held KC9RB.
- PITTS, JAMES RAZgranted 2019-05-30
All historical holders
Every license row we've seen with the callsign KC9RB, oldest first.
- Bonanno, Russell J IN2023-06-02 active
- PITTS, JAMES R— → cancelled 1999-07-15