Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WH2JA callsign genealogy
Currently held by Kawamoto, Masayuki
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 WH2JA's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WH2JA.
No current licensee on record previously held this callsign.