Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AB9GK callsign genealogy
Currently held by Radtke, Eugene A
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 AB9GK's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AB9GK.
No current licensee on record previously held this callsign.