Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5JEF callsign genealogy
Currently held by HAUSEN, MICHAEL JEFF
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 K5JEF's current licensee, walking backwards.
- Hausen, MichaelARgranted 2011-09-23cancelled 2011-12-06
Successor callsigns
Callsigns held now by people who previously held K5JEF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5JEF, oldest first.
- FIELDS, JAMES E TX1998-04-22 → cancelled 2010-04-23
- HAUSEN, MICHAEL JEFF AR2021-09-29 active