Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA7DI callsign genealogy
Currently held by Ma, Tsung Ping
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 AA7DI's current licensee, walking backwards.
- Ma, Tsung PingHIgranted 2020-09-15cancelled 2022-02-25
Successor callsigns
Callsigns held now by people who previously held AA7DI.
- Ma, Tsung PingHIgranted 2022-12-02cancelled 2023-09-29
All historical holders
Every license row we've seen with the callsign AA7DI, oldest first.
- SCOTTEN SR, DONALD E AZ2009-11-25 → cancelled 2022-02-08
- Ma, Tsung Ping HI2022-02-25 → cancelled 2022-12-02