Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KX4XY callsign genealogy
Currently held by Vivona, Rudolph V
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 KX4XY's current licensee, walking backwards.
- Vivona, Rudolph VNCgranted 2020-02-11cancelled 2020-03-16
Successor callsigns
Callsigns held now by people who previously held KX4XY.
No current licensee on record previously held this callsign.