Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4EUS callsign genealogy
Currently held by Roy, Michael D
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 K4EUS's current licensee, walking backwards.
- Roy, Michael DFLgranted 2009-08-08cancelled 2015-12-19
Successor callsigns
Callsigns held now by people who previously held K4EUS.
No current licensee on record previously held this callsign.