Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4TWW callsign genealogy
Currently held by Willis, Tabor
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 K4TWW's current licensee, walking backwards.
- Willis, TaborTNgranted 2021-03-11cancelled 2021-04-06
Successor callsigns
Callsigns held now by people who previously held K4TWW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4TWW, oldest first.
- WALLACE JR, THOMAS W NC2007-08-21 → cancelled 2019-08-22
- Willis, Tabor TN2021-04-06 active