Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA9FS callsign genealogy
Currently held by SAMPLE, FREDRICK L
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 AA9FS's current licensee, walking backwards.
- SAMPLE, FREDRICK LILgranted 2016-03-12cancelled 2018-04-10
Successor callsigns
Callsigns held now by people who previously held AA9FS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AA9FS, oldest first.
- YASUNAGA, SHIG IL1993-01-12 → cancelled 2005-01-13
- SAMPLE, FREDRICK L IL2018-04-10 active