Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA8J callsign genealogy
Currently held by Hioki, Takashi
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 KA8J's current licensee, walking backwards.
- Hioki, TakashiNVgranted 2009-08-07cancelled 2010-02-12
Successor callsigns
Callsigns held now by people who previously held KA8J.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA8J, oldest first.
- COMFORT, DONNA R MI1994-05-03 → cancelled 2006-05-04
- Hioki, Takashi NV2019-11-18 active