Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC9VH callsign genealogy
Currently held by Donvig, Katherine
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 AC9VH's current licensee, walking backwards.
- Donvig, KatherineWIgranted 2019-05-13cancelled 2019-06-14
Successor callsigns
Callsigns held now by people who previously held AC9VH.
- Donvig, KatherineWIgranted 2019-07-27