Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KU4TK callsign genealogy
Currently held by KIENAST, DONALD J
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 KU4TK's current licensee, walking backwards.
- KIENAST, DONALD Jcancelled 1998-07-07
Successor callsigns
Callsigns held now by people who previously held KU4TK.
- Kienast, Donald JVAgranted 2016-02-01cancelled 2018-02-16