Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AA0AU callsign genealogy
Currently held by BLAKE JR, RONALD R
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 AA0AU's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AA0AU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AA0AU, oldest first.
- MARIHUGH, GLENN E KS2010-02-11 → cancelled 2022-04-19
- BLAKE JR, RONALD R MN2023-03-13 active