Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR4JKL callsign genealogy
Currently held by King, Ryan
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 KR4JKL's current licensee, walking backwards.
- King, RyanOHgranted 2024-11-01cancelled 2024-11-22
Successor callsigns
Callsigns held now by people who previously held KR4JKL.
No current licensee on record previously held this callsign.