Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5JON callsign genealogy
Currently held by SHINSATO, GEORGE K
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 K5JON's current licensee, walking backwards.
- Ledbetter, Jon CTXgranted 2006-07-26cancelled 2007-02-23
Successor callsigns
Callsigns held now by people who previously held K5JON.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5JON, oldest first.
- SHINSATO, GEORGE K TX1994-07-09 → cancelled 2006-07-11
- Ledbetter, Jon C TX2017-01-04 active