Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6DFN callsign genealogy
Currently held by OKA, NOBUTAKA
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 W6DFN's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W6DFN.
No current licensee on record previously held this callsign.