Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WT4TK callsign genealogy
Currently held by Kottke, Thomas 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 WT4TK's current licensee, walking backwards.
- Kottke, Thomas GNCgranted 2018-09-27cancelled 2021-10-02
Successor callsigns
Callsigns held now by people who previously held WT4TK.
No current licensee on record previously held this callsign.