Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK1O callsign genealogy
Currently held by Toli, Steven
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 KK1O's current licensee, walking backwards.
- Ramos Jr, Ramon LCTgranted 2014-04-01cancelled 2019-04-02
Successor callsigns
Callsigns held now by people who previously held KK1O.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KK1O, oldest first.
- Toli, Steven NH2007-01-17 → cancelled 2019-03-13
- Ramos Jr, Ramon L CT2019-04-02 active