Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KI4RCA callsign genealogy
Currently held by Davidson, Jonathan Y
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 KI4RCA's current licensee, walking backwards.
- Davidson, Cooper TALgranted 2024-07-24cancelled 2025-02-28
Successor callsigns
Callsigns held now by people who previously held KI4RCA.
- Davidson, Jonathan YALgranted 2021-05-07
All historical holders
Every license row we've seen with the callsign KI4RCA, oldest first.
- Davidson, Jonathan Y AL2016-10-15 → cancelled 2021-05-07
- Davidson, Cooper T AL2025-02-28 active