Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB1CFY callsign genealogy
Currently held by Dufrat, John F
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 WB1CFY's current licensee, walking backwards.
- N1IFZcancelledcancelled 1998-12-17
Successor callsigns
Callsigns held now by people who previously held WB1CFY.
No current licensee on record previously held this callsign.