Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB8O callsign genealogy
Currently held by BRANSFORD, JOHN 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 AB8O's current licensee, walking backwards.
- Wiener, John AOHgranted 2006-04-06cancelled 2006-08-08
Successor callsigns
Callsigns held now by people who previously held AB8O.
- BRANSFORD, JOHN DMIgranted 2003-02-11cancelled 2004-03-12
All historical holders
Every license row we've seen with the callsign AB8O, oldest first.
- BRANSFORD, JOHN D MI2002-04-10 → cancelled 2003-02-11
- Wiener, John A OH2016-06-02 active