Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WD0A callsign genealogy
Currently held by Ruenholl, Ronnie M
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 WD0A's current licensee, walking backwards.
- RUENHOLL, RONNIE MNEgranted 2012-12-11cancelled 2019-09-10
Successor callsigns
Callsigns held now by people who previously held WD0A.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WD0A, oldest first.
- MOORE, REX D IA2007-08-02 → cancelled 2019-08-21
- Ruenholl, Ronnie M NE2019-09-10 active