Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD5KAT callsign genealogy
Currently held by Winkler, William G
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 KD5KAT's current licensee, walking backwards.
- ROWELL, KATHRYN DOKgranted 2019-09-23cancelled 2019-10-18
Successor callsigns
Callsigns held now by people who previously held KD5KAT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD5KAT, oldest first.
- Winkler, William G AR2000-04-25 → cancelled 2012-04-26
- ROWELL, KATHRYN D OK2019-10-18 active