Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AI4JU callsign genealogy
Currently held by Lawrence, David J
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 AI4JU's current licensee, walking backwards.
- Lawrence, David JFLgranted 1999-04-12cancelled 2005-03-28
Successor callsigns
Callsigns held now by people who previously held AI4JU.
No current licensee on record previously held this callsign.