Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N9GDE callsign genealogy
Currently held by CARLSON, JOSEPH D
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 N9GDE's current licensee, walking backwards.
- Erdman, Gregory DINgranted 2022-10-18cancelled 2023-02-14
Successor callsigns
Callsigns held now by people who previously held N9GDE.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9GDE, oldest first.
- CARLSON, JOSEPH D IN1997-03-13 → cancelled 2009-03-14
- Erdman, Gregory D IN2023-02-14 active