Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI4DG callsign genealogy
Currently held by ADAIR, JONATHAN 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 AI4DG's current licensee, walking backwards.
- ADAIR, JONATHAN EFLgranted 1997-04-18cancelled 2003-12-24
Successor callsigns
Callsigns held now by people who previously held AI4DG.
No current licensee on record previously held this callsign.