Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9LSE callsign genealogy
Currently held by RUDES, MICHAEL R
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 KC9LSE's current licensee, walking backwards.
- RUDES, MICHAEL RILgranted 2023-02-28cancelled 2026-07-07
Successor callsigns
Callsigns held now by people who previously held KC9LSE.
- RUDES, MICHAEL RILgranted 2023-02-28cancelled 2026-07-07
All historical holders
Every license row we've seen with the callsign KC9LSE, oldest first.
- RUDES, MICHAEL R IL2007-06-01 → cancelled 2012-04-17
- RUDES, MICHAEL R IL2026-07-07 active