Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB9DG callsign genealogy
Currently held by Gregory III, Denzel
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 AB9DG's current licensee, walking backwards.
- Gregory III, DenzelINgranted 2009-02-05cancelled 2018-03-02
Successor callsigns
Callsigns held now by people who previously held AB9DG.
- Tedeschi, GuidoNJgranted 2024-01-23
All historical holders
Every license row we've seen with the callsign AB9DG, oldest first.
- Tedeschi, Guido IL2011-12-23 → cancelled 2013-06-18
- Gregory III, Denzel IN2018-03-02 active