Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ5JEF callsign genealogy
Currently held by Sparkman, Jeffery 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 KZ5JEF's current licensee, walking backwards.
- Sparkman, Jeffery LMSgranted 2000-08-23cancelled 2001-03-16
Successor callsigns
Callsigns held now by people who previously held KZ5JEF.
No current licensee on record previously held this callsign.