Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KS1Q callsign genealogy
Currently held by LEONARD III, ROBERT F
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 KS1Q's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KS1Q.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KS1Q, oldest first.
- LEONARD III, ROBERT F NH1999-04-28 → cancelled 2011-04-29
- Barbuto, John J MA2022-04-14 active