Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5JFS callsign genealogy
Currently held by STOROZYSZYN, JOE F
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 K5JFS's current licensee, walking backwards.
- Shooter, John FTXgranted 2021-02-09cancelled 2021-03-20
Successor callsigns
Callsigns held now by people who previously held K5JFS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5JFS, oldest first.
- STOROZYSZYN, JOE F LA2008-11-27 → cancelled 2020-11-28
- Shooter, John F TX2021-03-20 active