Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KT0T callsign genealogy
Currently held by SCHWARTZ, ROBERT C
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 KT0T's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KT0T.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KT0T, oldest first.
- LEONARD JR, RICHARD A CO1988-07-05 → cancelled 2000-07-06
- SCHWARTZ, ROBERT C MN2010-07-17 → cancelled 2022-09-27
- Jackson, Graham L CO2022-10-15 active