Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4UF callsign genealogy
Currently held by LITTLE SR, WILLIAM E
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 KD4UF's current licensee, walking backwards.
- WB4NBJno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KD4UF.
- LITTLE SR, WILLIAM ESCgranted 2015-08-04