Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ4DTW callsign genealogy
Currently held by WINKLER, DANIEL T
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 KJ4DTW's current licensee, walking backwards.
- WINKLER, DANIEL TNCgranted 2021-10-18cancelled 2021-12-07
Successor callsigns
Callsigns held now by people who previously held KJ4DTW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KJ4DTW, oldest first.
- Patience, Elleen S SC2008-04-29 → cancelled 2020-04-30
- WINKLER, DANIEL T NC2021-12-07 active