Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4TWT callsign genealogy
Currently held by Vickers, Daniel 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 K4TWT's current licensee, walking backwards.
- Vickers, Daniel AFLgranted 2024-04-11cancelled 2024-05-04
Successor callsigns
Callsigns held now by people who previously held K4TWT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4TWT, oldest first.
- TRAPP, TERRY W TN2009-09-05 → cancelled 2021-10-29
- Vickers, Daniel A FL2024-05-04 active