Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB4EM callsign genealogy
Currently held by Schroeter, Horst J
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 WB4EM's current licensee, walking backwards.
- Schroeter, Horst JFLgranted 2023-06-27cancelled 2023-09-01
Successor callsigns
Callsigns held now by people who previously held WB4EM.
No current licensee on record previously held this callsign.