Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KH6JU callsign genealogy
Currently held by KOERBER, MICHAEL A
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 KH6JU's current licensee, walking backwards.
- Ueoka, Judy MHIgranted 2013-07-09cancelled 2013-08-09
Successor callsigns
Callsigns held now by people who previously held KH6JU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KH6JU, oldest first.
- KOERBER, MICHAEL A MA1994-07-28 → cancelled 2006-07-29
- Ueoka, Judy HI2023-06-27 active