Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4TW callsign genealogy
Currently held by WINDLE, JEFFERY A
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 KD4TW's current licensee, walking backwards.
- BELL, MICHAEL TSCgranted 2023-11-01cancelled 2024-01-30
Successor callsigns
Callsigns held now by people who previously held KD4TW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD4TW, oldest first.
- WINDLE, JEFFERY A TN2004-04-24 → cancelled 2016-07-22
- BELL, MICHAEL T SC2024-01-30 active