Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0DJR callsign genealogy
Currently held by Riviera, David J
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 K0DJR's current licensee, walking backwards.
- Rosenman, DavidMNgranted 2017-09-07cancelled 2017-10-11
Successor callsigns
Callsigns held now by people who previously held K0DJR.
- Riviera, David JMNgranted 2015-05-02cancelled 2017-04-07
All historical holders
Every license row we've seen with the callsign K0DJR, oldest first.
- FRENCH, WILLIAM M MO1996-04-12 → cancelled 2008-04-15
- Riviera, David J MN2011-07-12 → cancelled 2015-05-02
- ROSENMAN, DAVID MN2017-10-11 active