Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KT0MAS callsign genealogy
Currently held by TROST, THOMAS G
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 KT0MAS's current licensee, walking backwards.
- TROST, THOMAS GNHgranted 2020-12-14cancelled 2021-01-01
Successor callsigns
Callsigns held now by people who previously held KT0MAS.
No current licensee on record previously held this callsign.