Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD3DAV callsign genealogy
Currently held by Koster, David E
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 KD3DAV's current licensee, walking backwards.
- Koster, David EDEgranted 2025-02-26cancelled 2025-04-26
Successor callsigns
Callsigns held now by people who previously held KD3DAV.
No current licensee on record previously held this callsign.