Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NX9D callsign genealogy
Currently held by BADER, HELMUT S
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 NX9D's current licensee, walking backwards.
- BRADY, JEFFREY WINgranted 2015-03-17cancelled 2019-12-20
Successor callsigns
Callsigns held now by people who previously held NX9D.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NX9D, oldest first.
- BADER, HELMUT S MI2007-11-20 → cancelled 2019-11-21
- BRADY, JEFFREY W KY2019-12-20 active