Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AJ6JH callsign genealogy
Currently held by Sun, Michael
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 AJ6JH's current licensee, walking backwards.
- Sun, MichaelCAgranted 2019-01-31cancelled 2019-04-03
Successor callsigns
Callsigns held now by people who previously held AJ6JH.
- Sun, MichaelCAgranted 2019-06-04cancelled 2019-09-27