Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3UFN callsign genealogy
Currently held by BUTLER, DAVID M
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 W3UFN's current licensee, walking backwards.
- W4PFYno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held W3UFN.
- BUTLER, DAVID MCOgranted 2024-11-01