Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK5JL callsign genealogy
Currently held by LAMBDIN, JONATHAN 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 KK5JL's current licensee, walking backwards.
- LAMBDIN, JONATHAN JARgranted 2024-08-06cancelled 2026-05-19
- KE4SLUno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KK5JL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KK5JL, oldest first.
- THYGESEN, JACKY L TX1997-11-19 → cancelled 2006-03-30
- LAMBDIN, JONATHAN J AR2026-05-19 active