Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF6U callsign genealogy
Currently held by SUTHERLAND, CHARLES L
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 KF6U's current licensee, walking backwards.
- STEINHOUR, GARY ECAgranted 2001-04-10cancelled 2007-02-08
Successor callsigns
Callsigns held now by people who previously held KF6U.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KF6U, oldest first.
- SUTHERLAND, CHARLES L CA1994-09-14 → cancelled 2006-09-15
- STEINHOUR, GARY E CA2016-12-03 active