Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4RNO callsign genealogy
Currently held by Sparks Jr, Christopher 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 K4RNO's current licensee, walking backwards.
- Sparks Jr, Christopher ANCgranted 2024-04-10cancelled 2025-08-08
Successor callsigns
Callsigns held now by people who previously held K4RNO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4RNO, oldest first.
- Deveney, Vincent O FL2012-05-01 → cancelled 2024-05-02
- Sparks Jr, Christopher A NC2025-08-08 active