Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KH0Q callsign genealogy
Currently held by YOKOYAMA, HIROMI
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 KH0Q's current licensee, walking backwards.
- MIYAWAKI, TAKASHIMPgranted 2006-11-30cancelled 2007-03-17
Successor callsigns
Callsigns held now by people who previously held KH0Q.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KH0Q, oldest first.
- YOKOYAMA, HIROMI MP1995-01-24 → cancelled 2006-10-19
- MIYAWAKI, TAKASHI MP2017-02-07 active