Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD7JA callsign genealogy
Currently held by Okumura, Tokuzo
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 AD7JA's current licensee, walking backwards.
- Okumura, TokuzoWAgranted 1996-05-01cancelled 2002-07-16
Successor callsigns
Callsigns held now by people who previously held AD7JA.
No current licensee on record previously held this callsign.