Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0RJD callsign genealogy
Currently held by Crosby, John 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 K0RJD's current licensee, walking backwards.
- Dufault, Randall JMNgranted 2020-12-03cancelled 2023-01-06
Successor callsigns
Callsigns held now by people who previously held K0RJD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0RJD, oldest first.
- Crosby, John A OR2000-09-19 → cancelled 2012-11-14
- Dufault, Randall J MN2023-01-06 active