Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KH6LT callsign genealogy
Currently held by Kaku, Mark T
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 KH6LT's current licensee, walking backwards.
- Kaku, Mark THIgranted 2018-05-30cancelled 2018-11-09
Successor callsigns
Callsigns held now by people who previously held KH6LT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KH6LT, oldest first.
- FISCHER, CARL E HI2006-03-30 → cancelled 2018-06-14
- Kaku, Mark T HI2018-11-09 active