Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1TKO callsign genealogy
Currently held by Sinisgalli Jr, Giacomo
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 K1TKO's current licensee, walking backwards.
- Sinisgalli Jr, GiacomoNYgranted 2011-02-24cancelled 2011-03-29
Successor callsigns
Callsigns held now by people who previously held K1TKO.
No current licensee on record previously held this callsign.