Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA0II callsign genealogy
Currently held by Hsu, Jason Y
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 AA0II's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AA0II.
No current licensee on record previously held this callsign.