Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD0QAU callsign genealogy
Currently held by Tarnowski, Joseph K
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 KD0QAU's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KD0QAU.
- Tarnowski, Joseph KMNgranted 2024-08-09