Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB4ESC callsign genealogy
Currently held by Tomasevic, Marko
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 KB4ESC's current licensee, walking backwards.
- Tomasevic, MarkoCOgranted 2016-07-13cancelled 2016-08-12
Successor callsigns
Callsigns held now by people who previously held KB4ESC.
No current licensee on record previously held this callsign.