Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WH0M callsign genealogy
Currently held by Kawabata, Ryoji
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 WH0M's current licensee, walking backwards.
- Kawabata, RyojiMPgranted 2003-06-20cancelled 2003-09-29
Successor callsigns
Callsigns held now by people who previously held WH0M.
No current licensee on record previously held this callsign.