Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB9BSA callsign genealogy
Currently held by Boy Scout Troop 104 Madison Wisconsin
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 WB9BSA's current licensee, walking backwards.
- KC9TVFcancelledBoy Scout Troop 104 Madison WisconsinWIgranted 2011-03-17cancelled 2011-04-09
Successor callsigns
Callsigns held now by people who previously held WB9BSA.
No current licensee on record previously held this callsign.