Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KT4SLG callsign genealogy
Currently held by Grichine, Sergei L
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 KT4SLG's current licensee, walking backwards.
- Grichine, Sergei LALgranted 2023-12-06cancelled 2023-12-27
Successor callsigns
Callsigns held now by people who previously held KT4SLG.
No current licensee on record previously held this callsign.