Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AA1AU callsign genealogy
Currently held by Punyajarastavee, Prompiriya
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 AA1AU's current licensee, walking backwards.
- Punyajarastavee, PrompiriyaCAgranted 2017-01-20cancelled 2017-04-11
Successor callsigns
Callsigns held now by people who previously held AA1AU.
- Punyajarastavee, PrompiriyaCAgranted 2017-08-08
All historical holders
Every license row we've seen with the callsign AA1AU, oldest first.
- GRECH, FRANK NH1992-02-18 → cancelled 2004-02-19
- Punyajarastavee, Prompiriya CA2017-04-11 → cancelled 2017-08-08