Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KU4TJ callsign genealogy
Currently held by Williams Jr, Ronald W
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 KU4TJ's current licensee, walking backwards.
- WILLIAMS JR, RONALD Wcancelled 1998-07-06
Successor callsigns
Callsigns held now by people who previously held KU4TJ.
No current licensee on record previously held this callsign.