Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1RJR callsign genealogy
Currently held by Ross, Riley 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 K1RJR's current licensee, walking backwards.
- Ross, Riley JFLgranted 2020-07-15cancelled 2020-08-11
Successor callsigns
Callsigns held now by people who previously held K1RJR.
- ROBERT, ROLAND JFLgranted 2008-02-20cancelled 2020-02-21
All historical holders
Every license row we've seen with the callsign K1RJR, oldest first.
- ROBERT, ROLAND J FL1998-04-03 → cancelled 2008-02-20
- Ross, Riley J FL2020-08-11 active