Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KI4YRO callsign genealogy
Currently held by Rayl, Curtiss C
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 KI4YRO's current licensee, walking backwards.
- Rayl, Curtiss CALgranted 1998-12-02cancelled 2007-08-15
Successor callsigns
Callsigns held now by people who previously held KI4YRO.
- Rayl, Curtiss CTXgranted 2022-11-15