Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9UDF callsign genealogy
Currently held by Bournique, Vincent 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 K9UDF's current licensee, walking backwards.
- Bournique 651, Vincent MAZgranted 2019-04-24cancelled 2019-05-14
Successor callsigns
Callsigns held now by people who previously held K9UDF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9UDF, oldest first.
- Bournique, Vincent E IN2009-05-23 → cancelled 2016-11-24
- Bournique, Vincent M ID2019-05-14 active