Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W6DU callsign genealogy
Currently held by BRATZENIA, RICHARD H
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 W6DU's current licensee, walking backwards.
- BRATZENIA, RICHARD HCAgranted 1999-03-03cancelled 2000-09-12
Successor callsigns
Callsigns held now by people who previously held W6DU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6DU, oldest first.
- EDBERG, ERIC B CA1995-03-15 → cancelled 1998-01-19
- BRATZENIA, RICHARD H CA2020-06-17 active