Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AI5UK callsign genealogy
Currently held by Isaacs, 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 AI5UK's current licensee, walking backwards.
- Isaacs, David JTXgranted 2024-09-18cancelled 2024-12-10
Successor callsigns
Callsigns held now by people who previously held AI5UK.
No current licensee on record previously held this callsign.