Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ4FSU callsign genealogy
Currently held by Morrell, Joseph 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 KJ4FSU's current licensee, walking backwards.
- Morrell, Joseph LFLgranted 2004-01-06cancelled 2006-05-12
- KD4MEIno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KJ4FSU.
No current licensee on record previously held this callsign.