Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4YSM callsign genealogy
Currently held by Wilson, Benjamin P
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 KD4YSM's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KD4YSM.
- Wilson, Benjamin PSCgranted 2017-11-28