Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KO4JB callsign genealogy
Currently held by Brantley, Jeremiah 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 KO4JB's current licensee, walking backwards.
- Brantley, Jeremiah RKYgranted 2021-03-01cancelled 2021-07-09
Successor callsigns
Callsigns held now by people who previously held KO4JB.
- Brantley, Jeremiah RGUgranted 2023-07-11