Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1DXX callsign genealogy
Currently held by Glaeser, Michael
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 N1DXX's current licensee, walking backwards.
- Glaeser, MichaelORgranted 2020-05-19cancelled 2020-06-06
Successor callsigns
Callsigns held now by people who previously held N1DXX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1DXX, oldest first.
- STEFFENS, GAEL MC M FL1999-11-05 → cancelled 2011-11-08
- Glaeser, Michael ID2020-06-06 active