Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WW6DUF callsign genealogy
Currently held by Duffen, Scott
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 WW6DUF's current licensee, walking backwards.
- Duffen, ScottCAgranted 2013-01-30cancelled 2013-02-20
Successor callsigns
Callsigns held now by people who previously held WW6DUF.
No current licensee on record previously held this callsign.