Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC1G callsign genealogy
Currently held by Onassis, Christopher M
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 AC1G's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AC1G.
- Onassis, Christopher MTXgranted 2024-11-08
All historical holders
Every license row we've seen with the callsign AC1G, oldest first.
- Christiansen, John A ME2008-03-17 → cancelled 2020-05-02
- Onassis, Christopher M TX2020-07-07 → cancelled 2024-11-08