Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1ILL callsign genealogy
Currently held by CHESS, HARVEY B
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 K1ILL's current licensee, walking backwards.
- Wilke, Sara JWIgranted 2019-03-15cancelled 2019-04-05
Successor callsigns
Callsigns held now by people who previously held K1ILL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K1ILL, oldest first.
- CHESS, HARVEY B MA1989-06-20 → cancelled 2001-06-21
- Wilke, Sara J WI2019-04-05 active