Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ6JR callsign genealogy
Currently held by Roysdon, Jason 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 KJ6JR's current licensee, walking backwards.
- Roysdon, Jason JCAgranted 2014-08-25cancelled 2015-03-24
Successor callsigns
Callsigns held now by people who previously held KJ6JR.
- Roysdon, Jason JCAgranted 2025-12-10
All historical holders
Every license row we've seen with the callsign KJ6JR, oldest first.
- BROWN, ALBERT J CA1998-06-15 → cancelled 2010-06-16
- Roysdon, Jason J CA2015-03-24 → cancelled 2015-12-08