Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC9EUM callsign genealogy
Currently held by Bohn, Kurt
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 KC9EUM's current licensee, walking backwards.
- Bohn, KurtWIgranted 2020-10-07
Successor callsigns
Callsigns held now by people who previously held KC9EUM.
All historical holders
Every license row we've seen with the callsign KC9EUM, oldest first.
- Bohn, Kurt WI2003-09-29 → cancelled 2005-01-28
- Bohn, Kurt WI2006-03-31 → cancelled 2010-12-24