Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KE7FO callsign genealogy
Currently held by Clark, William D
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 KE7FO's current licensee, walking backwards.
- Clark, William DUTgranted 2020-03-09cancelled 2020-03-31
Successor callsigns
Callsigns held now by people who previously held KE7FO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KE7FO, oldest first.
- CLARK, WILLIAM D UT2002-06-12 → cancelled 2014-07-01
- Clark, William D UT2020-03-31 active