Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1ADB callsign genealogy
Currently held by Ball, Aaron 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 K1ADB's current licensee, walking backwards.
- Marble, Micheal SAZgranted 2023-09-19cancelled 2023-11-14
Successor callsigns
Callsigns held now by people who previously held K1ADB.
- Ball, Aaron DWAgranted 2021-09-17
All historical holders
Every license row we've seen with the callsign K1ADB, oldest first.
- Ball, Aaron D WA2020-07-14 → cancelled 2021-09-17
- Marble, Micheal S AZ2023-11-14 active