Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AJ6SU callsign genealogy
Currently held by Liu, Yongzhong
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 AJ6SU's current licensee, walking backwards.
- Liu, YongzhongCAgranted 2021-03-26cancelled 2021-06-14
Successor callsigns
Callsigns held now by people who previously held AJ6SU.
- Liu, YongzhongCAgranted 2021-07-09