Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6OO callsign genealogy
Currently held by OSBORNE, DONALD E
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 W6OO's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W6OO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6OO, oldest first.
- OSBORNE, DONALD E CA1997-01-02 → cancelled 2004-01-02
- Ikeura, Akihiko DC2015-10-27 active