Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA4OL callsign genealogy
Currently held by NORTON, OREA 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 AA4OL's current licensee, walking backwards.
- Bublitz Sr, John RTNgranted 2025-04-02cancelled 2025-08-08
Successor callsigns
Callsigns held now by people who previously held AA4OL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AA4OL, oldest first.
- NORTON, OREA A AL2005-06-06 → cancelled 2017-08-31
- Bublitz Sr, John R TN2025-08-08 active