Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W6UK callsign genealogy
Currently held by SAUERBERG, DONALD R
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 W6UK's current licensee, walking backwards.
- Williams Jr, Roger WCAgranted 2017-11-01cancelled 2018-04-06
Successor callsigns
Callsigns held now by people who previously held W6UK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6UK, oldest first.
- REY, ALVINO UT1994-12-14 → cancelled 2004-02-24
- SAUERBERG, DONALD R CA2006-03-17 → cancelled 2018-03-20
- Williams Jr, Roger W CA2018-04-06 active