Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W6UCI callsign genealogy
Currently held by Dunckel, David M
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 W6UCI's current licensee, walking backwards.
- Dunckel, David MCAgranted 2017-10-05cancelled 2020-01-04
Successor callsigns
Callsigns held now by people who previously held W6UCI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6UCI, oldest first.
- DORIN, HAROLD C CA2007-07-19 → cancelled 2019-10-18
- Dunckel, David M CA2020-01-04 active