Confidence: Medium · Source: FCC ULS · As of 2026-10-27
AA5K callsign genealogy
Currently held by Shimizu, Akio
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 AA5K's current licensee, walking backwards.
- Soape, Jack WTXgranted 2024-07-17cancelled 2026-09-11
Successor callsigns
Callsigns held now by people who previously held AA5K.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AA5K, oldest first.
- Shimizu, Akio WA2014-05-27 → cancelled 2026-08-26
- Soape, Jack W TX2026-09-11 active