Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0KAT callsign genealogy
Currently held by Hall, Kathy J
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 K0KAT's current licensee, walking backwards.
- Kronfeld, NeilILgranted 2023-04-28cancelled 2023-05-23
Successor callsigns
Callsigns held now by people who previously held K0KAT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0KAT, oldest first.
- Hall, Kathy J IA2010-11-16 → cancelled 2022-11-17
- Kronfeld, Neil IL2023-05-23 active