Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WS7DA callsign genealogy
Currently held by Remboldt, Michael D
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 WS7DA's current licensee, walking backwards.
- Remboldt, Michael DORgranted 2020-11-20cancelled 2021-05-25
Successor callsigns
Callsigns held now by people who previously held WS7DA.
No current licensee on record previously held this callsign.