Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K3TZD 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 K3TZD's current licensee, walking backwards.
- Duwe, Tan ZMDgranted 2018-06-26cancelled 2018-07-24
Successor callsigns
Callsigns held now by people who previously held K3TZD.
- Duwe, Tan ZMDgranted 2025-07-11