Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4FUU callsign genealogy
Currently held by Gudger, David 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 K4FUU's current licensee, walking backwards.
- Gudger, David TOHgranted 2002-01-23cancelled 2006-01-24
Successor callsigns
Callsigns held now by people who previously held K4FUU.
No current licensee on record previously held this callsign.