Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KN4VT callsign genealogy
Currently held by Toto, Vincent J
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 KN4VT's current licensee, walking backwards.
- Toto, Vincent JSCgranted 2018-03-14cancelled 2022-09-03
Successor callsigns
Callsigns held now by people who previously held KN4VT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KN4VT, oldest first.
- GIBSON, THOMAS A FL2001-05-09 → cancelled 2013-08-07
- Toto, Vincent J SC2022-09-03 active