Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR4RJ callsign genealogy
Currently held by YOUNG, JAMES P
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 KR4RJ's current licensee, walking backwards.
- Young, James PTNgranted 2022-02-22cancelled 2022-03-12
Successor callsigns
Callsigns held now by people who previously held KR4RJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KR4RJ, oldest first.
- YOUNG, JAMES P TN1994-05-10 → cancelled 2006-05-11
- Young, James P TN2022-03-12 active