Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9SST callsign genealogy
Currently held by WINTERS, JOHN C
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 K9SST's current licensee, walking backwards.
- Hanson, Frederick DINgranted 2014-02-18cancelled 2014-03-21
Successor callsigns
Callsigns held now by people who previously held K9SST.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9SST, oldest first.
- WINTERS, JOHN C IL1996-04-04 → cancelled 2008-04-05
- Hanson, Frederick D IN2024-02-13 active