Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N7XDX callsign genealogy
Currently held by Miller, Ronald C
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 N7XDX's current licensee, walking backwards.
- Miller, Ronald CWAgranted 2008-01-24cancelled 2008-03-18
Successor callsigns
Callsigns held now by people who previously held N7XDX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N7XDX, oldest first.
- JOHNSON, KIRBY D WA1992-03-31 → cancelled 2004-04-01
- Miller, Ronald C WA2018-01-04 active