Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WH6DOY 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 WH6DOY's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held WH6DOY.
- Ma, Tsung PingHIgranted 2022-02-25cancelled 2022-12-02