Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AJ4AA callsign genealogy
Currently held by Tsujimura, Mikio
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 AJ4AA's current licensee, walking backwards.
- Tsujimura, MikioSCgranted 2013-05-20cancelled 2014-07-08
Successor callsigns
Callsigns held now by people who previously held AJ4AA.
- AMICK SR, JAMES GSCgranted 2003-07-02cancelled 2006-12-30
All historical holders
Every license row we've seen with the callsign AJ4AA, oldest first.
- AMICK SR, JAMES G SC2001-10-10 → cancelled 2003-07-02
- Tsujimura, Mikio SC2024-04-25 active