Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB9G callsign genealogy
Currently held by Eadler, Christopher 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 AB9G's current licensee, walking backwards.
- Eadler, Christopher RINgranted 2022-10-08cancelled 2024-02-16
Successor callsigns
Callsigns held now by people who previously held AB9G.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AB9G, oldest first.
- GROOMS, BROOKS M IN2011-11-08 → cancelled 2024-01-27
- Eadler, Christopher R IN2024-02-16 active