Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4SDD callsign genealogy
Currently held by DIANA, S DINO
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 W4SDD's current licensee, walking backwards.
- DIANA, S DINOVAgranted 2014-10-14cancelled 2014-12-30
Successor callsigns
Callsigns held now by people who previously held W4SDD.
No current licensee on record previously held this callsign.