Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6QK callsign genealogy
Currently held by Imperial Contest Group
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 K6QK's current licensee, walking backwards.
- KI6OYJcancelledImperial Contest GroupCAgranted 2008-02-27cancelled 2008-04-04
Successor callsigns
Callsigns held now by people who previously held K6QK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6QK, oldest first.
- REIFFIN, JOSEPH L CA1994-02-01 → cancelled 2000-01-08
- HILLER, HARVEY M CA2002-03-29 → cancelled 2008-02-13
- Imperial Contest Group AZ2018-01-31 active