Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI4RN callsign genealogy
Currently held by Leon, Richard H
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 AI4RN's current licensee, walking backwards.
- McKernan, Keith MVAgranted 2024-05-14cancelled 2025-01-28
Successor callsigns
Callsigns held now by people who previously held AI4RN.
- Leon, Richard HFLgranted 2024-11-26
All historical holders
Every license row we've seen with the callsign AI4RN, oldest first.
- Leon, Richard H FL2006-09-11 → cancelled 2014-02-21
- McKernan, Keith M VA2025-01-28 active