Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KH6XO callsign genealogy
Currently held by ZUSTAK, GEORGE E
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 KH6XO's current licensee, walking backwards.
- HLIVAK, JOYCE RHIgranted 2001-01-11cancelled 2007-02-13
- WH6CJOno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KH6XO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KH6XO, oldest first.
- ZUSTAK, GEORGE E HI1994-08-22 → cancelled 2001-06-21
- HLIVAK, JOYCE R HI2017-01-10 active