Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W2FIU callsign genealogy
Currently held by BURGDORF, DONALD J
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 W2FIU's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W2FIU.
No current licensee on record previously held this callsign.