Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB9SFS callsign genealogy
Currently held by BADGERLAND AMATEUR TELEVISION SOCIETY
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 KB9SFS's current licensee, walking backwards.
- Schwartz, Stephanie FILgranted 2024-11-19cancelled 2024-12-14
Successor callsigns
Callsigns held now by people who previously held KB9SFS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB9SFS, oldest first.
- BADGERLAND AMATEUR TELEVISION SOCIETY WI1998-03-05 → cancelled 2010-03-06
- Schwartz, Stephanie F IL2024-12-14 active