Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9DEF callsign genealogy
Currently held by FOUT, DONALD E
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 W9DEF's current licensee, walking backwards.
- Sager, Scott CWIgranted 2012-10-01cancelled 2022-01-25
Successor callsigns
Callsigns held now by people who previously held W9DEF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9DEF, oldest first.
- FOUT, DONALD E IL2004-05-08 → cancelled 2016-05-10
- Sager, Scott C WI2022-01-25 active