Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AJ7J callsign genealogy
Currently held by HOLMEN, ROGER A
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 AJ7J's current licensee, walking backwards.
- Halvorson, Jonathan SIDgranted 2025-04-17cancelled 2025-05-09
Successor callsigns
Callsigns held now by people who previously held AJ7J.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AJ7J, oldest first.
- HOLMEN, ROGER A NM2013-02-04 → cancelled 2025-04-22
- Halvorson, Jonathon S ID2025-05-09 active