Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9ZGL callsign genealogy
Currently held by Clark, Jason
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 N9ZGL's current licensee, walking backwards.
- Clark, JasonNDgranted 2024-04-23cancelled 2024-06-15
Successor callsigns
Callsigns held now by people who previously held N9ZGL.
All historical holders
Every license row we've seen with the callsign N9ZGL, oldest first.
- SHELDON, PAUL A IL2020-04-11 → cancelled 2020-07-24
- Clark, Jason ND2024-06-15 active