Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1DSV callsign genealogy
Currently held by VIAZANKO, DUANE 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 W1DSV's current licensee, walking backwards.
- VIAZANKO, DUANE SMAgranted 2021-07-02cancelled 2021-07-20
Successor callsigns
Callsigns held now by people who previously held W1DSV.
No current licensee on record previously held this callsign.