Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9DSD callsign genealogy
Currently held by Dunn, Dave S
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 W9DSD's current licensee, walking backwards.
- DUNN, DAVID SILgranted 2011-04-18cancelled 2011-06-01
Successor callsigns
Callsigns held now by people who previously held W9DSD.
No current licensee on record previously held this callsign.