Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KM4JON callsign genealogy
Currently held by EASTWOOD, JOHN C
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 KM4JON's current licensee, walking backwards.
- EASTWOOD, JOHN CGAgranted 2015-01-16cancelled 2015-02-07
Successor callsigns
Callsigns held now by people who previously held KM4JON.
No current licensee on record previously held this callsign.