Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KH7B callsign genealogy
Currently held by GARDNER, CLARENCE A
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 KH7B's current licensee, walking backwards.
- WH6DHXcancelledMauna Kea Contest ClubHIgranted 2007-03-20cancelled 2007-09-11
Successor callsigns
Callsigns held now by people who previously held KH7B.
- GARDNER, CLARENCE AHIgranted 2015-06-04
All historical holders
Every license row we've seen with the callsign KH7B, oldest first.
- GARDNER, CLARENCE A HI1996-12-17 → cancelled 2005-08-23
- Mauna Kea Contest Club HI2017-07-05 active