Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC9BB callsign genealogy
Currently held by Duco, Armand 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 AC9BB's current licensee, walking backwards.
- Duco, Armand RWIgranted 2011-12-08cancelled 2012-01-20
Successor callsigns
Callsigns held now by people who previously held AC9BB.
- Duco, Armand RTNgranted 2021-11-30