Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0STD callsign genealogy
Currently held by DUFFY, STEPHEN T
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 W0STD's current licensee, walking backwards.
- DUFFY, STEPHEN TKSgranted 2014-01-29cancelled 2014-04-25
Successor callsigns
Callsigns held now by people who previously held W0STD.
No current licensee on record previously held this callsign.