Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WH6XO callsign genealogy
Currently held by ENDRISS III, JOHN K
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 WH6XO's current licensee, walking backwards.
- Host, ChristineHIgranted 2021-04-02cancelled 2021-05-04
Successor callsigns
Callsigns held now by people who previously held WH6XO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WH6XO, oldest first.
- ENDRISS III, JOHN K HI1994-08-31 → cancelled 2006-09-01
- Host, Christine HI2021-05-04 active