Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4YUS callsign genealogy
Currently held by Roberts, Eric A
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 K4YUS's current licensee, walking backwards.
- Roberts, Eric AKYgranted 2017-12-21cancelled 2018-01-27
Successor callsigns
Callsigns held now by people who previously held K4YUS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4YUS, oldest first.
- HARTLEY, ROBERT M FL1996-11-22 → cancelled 2008-11-25
- Roberts, Eric A KY2018-01-27 active