Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W8TRD callsign genealogy
Currently held by TONG, DAVID
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 W8TRD's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W8TRD.
No current licensee on record previously held this callsign.