Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AJ4EO callsign genealogy
Currently held by HOLMBERG, GARY D
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 AJ4EO's current licensee, walking backwards.
- HOLMBERG, GARY DNCgranted 1999-01-10cancelled 2008-01-22
Successor callsigns
Callsigns held now by people who previously held AJ4EO.
No current licensee on record previously held this callsign.