Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KG0EFF callsign genealogy
Currently held by Knoerzer, Geoffrey
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 KG0EFF's current licensee, walking backwards.
- Knoerzer, GeoffreyIAgranted 2025-05-21cancelled 2025-06-10
Successor callsigns
Callsigns held now by people who previously held KG0EFF.
No current licensee on record previously held this callsign.