Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9BSC callsign genealogy
Currently held by Preuss, Brian D
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 KC9BSC's current licensee, walking backwards.
- LAMERS, SCOTT JWIgranted 2024-01-27cancelled 2024-02-23
Successor callsigns
Callsigns held now by people who previously held KC9BSC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC9BSC, oldest first.
- Preuss, Brian D WI2002-05-02 → cancelled 2014-05-03
- LAMERS, SCOTT J WI2024-02-23 active