Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AA1UU callsign genealogy
Currently held by Tang, Douglas D
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 AA1UU's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AA1UU.
No current licensee on record previously held this callsign.