Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC9WB callsign genealogy
Currently held by Schumitsch, David 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 AC9WB's current licensee, walking backwards.
- Schumitsch, David RWIgranted 2018-04-03cancelled 2019-11-05
Successor callsigns
Callsigns held now by people who previously held AC9WB.
No current licensee on record previously held this callsign.