Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4RJJ callsign genealogy
Currently held by Julian, Ronald 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 K4RJJ's current licensee, walking backwards.
- JULIAN, RONNY JGAgranted 1992-01-14cancelled 2000-11-21
Successor callsigns
Callsigns held now by people who previously held K4RJJ.
- Julian, Ronald JFLgranted 2024-05-10