Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KT4ACE callsign genealogy
Currently held by Thompson, Marc T
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 KT4ACE's current licensee, walking backwards.
- Thompson, Marc TGAgranted 2021-03-23cancelled 2021-05-11
Successor callsigns
Callsigns held now by people who previously held KT4ACE.
No current licensee on record previously held this callsign.