Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9GEC callsign genealogy
Currently held by Cise, Gregory E
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 K9GEC's current licensee, walking backwards.
- Cise, Gregory EILgranted 2022-07-16cancelled 2025-08-08
- WB2TKSno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held K9GEC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9GEC, oldest first.
- KRZYSIAK, RONALD J WI2005-06-23 → cancelled 2017-09-21
- Cise, Gregory E IL2025-08-08 active