Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9CCF callsign genealogy
Currently held by WILDMAN, WILLIAM
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 K9CCF's current licensee, walking backwards.
- Riemann, Jon DWIgranted 2022-05-10cancelled 2024-03-15
Successor callsigns
Callsigns held now by people who previously held K9CCF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9CCF, oldest first.
- WILDMAN, WILLIAM WI1996-08-30 → cancelled 2008-09-03
- Riemann, Jon D WI2024-03-15 active