Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AI4HJ callsign genealogy
Currently held by ROBINSON, DAVID I
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 AI4HJ's current licensee, walking backwards.
- ROBINSON, DAVID IGAgranted 2003-07-28cancelled 2004-09-23
Successor callsigns
Callsigns held now by people who previously held AI4HJ.
No current licensee on record previously held this callsign.