Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA4FJ callsign genealogy
Currently held by JACOBS, FOREST 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 AA4FJ's current licensee, walking backwards.
- JACOBS JR, FOREST RFLgranted 2018-02-14cancelled 2021-12-14
Successor callsigns
Callsigns held now by people who previously held AA4FJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AA4FJ, oldest first.
- JACOBS, FOREST R KY1997-04-16 → cancelled 2009-04-17
- JACOBS JR, FOREST R FL2021-12-14 active