Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KI5SMT callsign genealogy
Currently held by Martinez Torres, Sergio
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 KI5SMT's current licensee, walking backwards.
- Martinez Torres, SergioTXgranted 2020-06-03cancelled 2020-06-23
Successor callsigns
Callsigns held now by people who previously held KI5SMT.
- Martinez Torres, SergioTXgranted 2022-02-23