Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI4EX callsign genealogy
Currently held by Robison, Kirk E
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 AI4EX's current licensee, walking backwards.
- Robison, Kirk EVAgranted 1999-12-09cancelled 2004-03-26
Successor callsigns
Callsigns held now by people who previously held AI4EX.
No current licensee on record previously held this callsign.