Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NG9U callsign genealogy
Currently held by GEUDER, NORMAN W
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 NG9U's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held NG9U.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NG9U, oldest first.
- GEUDER, NORMAN W IL2011-07-15 → cancelled 2023-10-03
- MCGREGOR, MICHAEL WA2023-10-20 active