Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WS7D callsign genealogy
Currently held by SCHERGEN, MARK T
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 WS7D's current licensee, walking backwards.
- WB7WUMno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held WS7D.
No current licensee on record previously held this callsign.