Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5JLL callsign genealogy
Currently held by Luo, Jilan
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 K5JLL's current licensee, walking backwards.
- Luo, JilanARgranted 2015-08-05cancelled 2015-08-29
Successor callsigns
Callsigns held now by people who previously held K5JLL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5JLL, oldest first.
- TRIMBLE, KIRBY J OK2000-07-08 → cancelled 2012-07-10
- Luo, Jilan AR2015-08-29 active