Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9DCT callsign genealogy
Currently held by TUNE, DENNIS C
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 W9DCT's current licensee, walking backwards.
- THORSON, DANIEL CMNgranted 2022-08-30cancelled 2026-08-04
Successor callsigns
Callsigns held now by people who previously held W9DCT.
- TUNE, DENNIS CARgranted 2023-12-01
All historical holders
Every license row we've seen with the callsign W9DCT, oldest first.
- TUNE, DENNIS C AR2022-05-14 → cancelled 2023-12-01
- THORSON, DANIEL C MN2026-08-04 active