Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9FO callsign genealogy
Currently held by Kankakee Iroquois DX & Contesting 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 K9FO's current licensee, walking backwards.
- KC9SVUcancelledKankakee Iroquois DX & Contesting GroupILgranted 2020-04-27cancelled 2022-03-22
Successor callsigns
Callsigns held now by people who previously held K9FO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9FO, oldest first.
- BOWSER, WILLIS E IL2020-02-25 → cancelled 2020-09-23
- Kankakee Iroquois DX & Contesting Group IL2022-03-22 active