Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4SVK callsign genealogy
Currently held by MARTANOVIC, TOMAS
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 K4SVK's current licensee, walking backwards.
- MARTANOVIC, TOMASSCgranted 2011-06-24cancelled 2020-01-24
Successor callsigns
Callsigns held now by people who previously held K4SVK.
No current licensee on record previously held this callsign.