Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KH8DX callsign genealogy
Currently held by FITIUTA AMATEUR RADIO TRANSMITTING SOCIETY
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 KH8DX's current licensee, walking backwards.
- Mulzer, Roger FrankASgranted 1997-01-22cancelled 2006-05-31
Successor callsigns
Callsigns held now by people who previously held KH8DX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KH8DX, oldest first.
- FITIUTA AMATEUR RADIO TRANSMITTING SOCIETY AS1996-11-04 → cancelled 1999-12-06
- Mulzer, Roger Frank AS2016-06-01 active