Confidence: Medium · Source: FCC ULS · As of 2026-09-14
ND3TD callsign genealogy
Currently held by Duwe, Tan Z
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 ND3TD's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held ND3TD.
No current licensee on record previously held this callsign.