Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM5W callsign genealogy
Currently held by Onassis, Christopher M
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 KM5W's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KM5W.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KM5W, oldest first.
- Schauer, Kermit K NM2016-11-22 → cancelled 2022-10-20
- Onassis, Christopher M TX2024-11-08 active