Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AK0J callsign genealogy
Currently held by Nakayama, Hisashi
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 AK0J's current licensee, walking backwards.
- Nakayama, HisashiCAgranted 2006-02-09cancelled 2006-03-31
Successor callsigns
Callsigns held now by people who previously held AK0J.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AK0J, oldest first.
- WHITWORTH, CLYDE A FL1990-01-30 → cancelled 2002-03-07
- Nakayama, Hisashi CA2016-01-14 active