Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB4YB callsign genealogy
Currently held by Boehmke, Yuergen
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 AB4YB's current licensee, walking backwards.
- Boehmke, YuergenFLgranted 2001-07-19cancelled 2005-03-02
Successor callsigns
Callsigns held now by people who previously held AB4YB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AB4YB, oldest first.
- HOPPER, CLARENCE KY1990-08-07 → cancelled 2002-08-08
- Boehmke, Yuergen FL2015-01-13 active