Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WT0V callsign genealogy
Currently held by KUPER, JACK M
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 WT0V's current licensee, walking backwards.
- Theisen, William BIAgranted 2002-07-10cancelled 2004-12-10
Successor callsigns
Callsigns held now by people who previously held WT0V.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WT0V, oldest first.
- KUPER, JACK M MO1992-02-04 → cancelled 2004-02-05
- Theisen, William B IA2024-11-06 active