Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WI5DUO callsign genealogy
Currently held by Lisoski, Derek L
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 WI5DUO's current licensee, walking backwards.
- Lisoski, Derek LCAgranted 2009-04-21cancelled 2010-04-17
Successor callsigns
Callsigns held now by people who previously held WI5DUO.
No current licensee on record previously held this callsign.