Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB9RB callsign genealogy
Currently held by Zust, Brian M
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 AB9RB's current licensee, walking backwards.
- Zust, Brian MINgranted 2006-08-22cancelled 2008-04-04
Successor callsigns
Callsigns held now by people who previously held AB9RB.
No current licensee on record previously held this callsign.