Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1ZDR callsign genealogy
Currently held by ST JAMES, MICHAEL A
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 N1ZDR's current licensee, walking backwards.
- COUTURE, ROBERT AKSgranted 2007-03-12cancelled 2008-02-20
Successor callsigns
Callsigns held now by people who previously held N1ZDR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1ZDR, oldest first.
- ST JAMES, MICHAEL A VT1997-05-03 → cancelled 2006-02-04
- COUTURE Mr, ROBERT A KS2018-01-10 active