Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD4VTO callsign genealogy
Currently held by Weber, Jason 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 KD4VTO's current licensee, walking backwards.
- Weber, Jason MMIgranted 2025-03-29cancelled 2025-04-25
Successor callsigns
Callsigns held now by people who previously held KD4VTO.
- Weber, Jason MMIgranted 2025-05-20
All historical holders
Every license row we've seen with the callsign KD4VTO, oldest first.
- WASHECK, SETH C FL1993-01-12 → cancelled 2005-01-13
- Weber, Jason M MI2025-04-25 → cancelled 2025-05-20