Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N6UJ callsign genealogy
Currently held by KAMADA, KATSUHIKO
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 N6UJ's current licensee, walking backwards.
- KAMADA, KARSUHIKOWAgranted 2019-09-13cancelled 2019-10-01
Successor callsigns
Callsigns held now by people who previously held N6UJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N6UJ, oldest first.
- Otto, Wesley B CA2007-10-03 → cancelled 2017-09-08
- KAMADA, KATSUHIKO WA2019-10-01 active