Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0JFB callsign genealogy
Currently held by Bauer, James 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 K0JFB's current licensee, walking backwards.
- Bauer, James FMOgranted 2021-04-28cancelled 2021-05-18
Successor callsigns
Callsigns held now by people who previously held K0JFB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0JFB, oldest first.
- Kemen, John J MN2007-12-12 → cancelled 2020-02-28
- Bauer, James F MO2021-05-18 active