Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KB0JET callsign genealogy
Currently held by Sparks, Steven R
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 KB0JET's current licensee, walking backwards.
- Sparks, Steven RMOgranted 2022-01-18cancelled 2022-02-08
Successor callsigns
Callsigns held now by people who previously held KB0JET.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB0JET, oldest first.
- SCHIFFEL, JONATHAN D KS1991-05-28 → cancelled 2003-05-29
- Sparks, Steven R MO2022-02-08 active