Confidence: Medium · Source: FCC ULS · As of 2026-11-04
KK5OE callsign genealogy
Currently held by Oguro, Tsunetaka
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 KK5OE's current licensee, walking backwards.
- Oguro, TsunetakaCAgranted 2020-12-05cancelled 2026-10-20
Successor callsigns
Callsigns held now by people who previously held KK5OE.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KK5OE, oldest first.
- MACHAN, GERALDINE A TX2005-03-02 → cancelled 2017-03-09
- Oguro, Tsunetaka CA2026-10-20 active