Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA1SA callsign genealogy
Currently held by KWOK, MING KAI
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 AA1SA's current licensee, walking backwards.
- KWOK, MING KAIMAgranted 2018-01-09cancelled 2021-05-14
Successor callsigns
Callsigns held now by people who previously held AA1SA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AA1SA, oldest first.
- ADAMS, JANE R IL2007-01-30 → cancelled 2019-04-09
- KWOK, MING KAI MA2021-05-14 active