Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KI4UX callsign genealogy
Currently held by NAGLE, ROY 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 KI4UX's current licensee, walking backwards.
- NAGLE, ROY AALgranted 2014-07-03cancelled 2017-04-08
Successor callsigns
Callsigns held now by people who previously held KI4UX.
- NAGLE, ROY AALgranted 2014-07-03cancelled 2017-04-08
All historical holders
Every license row we've seen with the callsign KI4UX, oldest first.
- NAGLE, ROY A AL1999-05-19 → cancelled 2004-08-07
- NAGLE, ROY A AL2017-04-08 active