Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AD8AU callsign genealogy
Currently held by Sobiesiak, Gregory J
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 AD8AU's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AD8AU.
- Sobiesiak, Gregory JMIgranted 2018-04-17cancelled 2019-03-22