Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD4DG callsign genealogy
Currently held by GASS, DENNIS 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 AD4DG's current licensee, walking backwards.
- GASS, DENNIS RGAgranted 2015-03-02cancelled 2015-08-21
Successor callsigns
Callsigns held now by people who previously held AD4DG.
- MITCHELL, JOHN AAZgranted 2025-04-29
All historical holders
Every license row we've seen with the callsign AD4DG, oldest first.
- MITCHELL, JOHN A AZ2003-01-27 → cancelled 2005-07-23
- GASS, DENNIS R GA2025-07-16 active