Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W0UKI callsign genealogy
Currently held by Mattson, Robert W
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 W0UKI's current licensee, walking backwards.
- MATTSON, LYLE DMNgranted 2011-01-27cancelled 2016-01-15
Successor callsigns
Callsigns held now by people who previously held W0UKI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0UKI, oldest first.
- Mattson, Robert W MN2006-01-11 → cancelled 2013-12-24
- MATTSON mr, LYLE D MN2026-02-14 active