Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB3AU callsign genealogy
Currently held by Brandt Sr, Ronald S
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 AB3AU's current licensee, walking backwards.
- Brandt Sr, Ronald SPAgranted 2002-02-13cancelled 2003-05-07
Successor callsigns
Callsigns held now by people who previously held AB3AU.
- Brandt Sr, Ronald SPAgranted 2003-05-28cancelled 2015-05-29