Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4DF callsign genealogy
Currently held by HUNSICKER, WILLIAM R
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 K4DF's current licensee, walking backwards.
- Gardner, Judith AFLgranted 2009-12-15cancelled 2019-07-06
Successor callsigns
Callsigns held now by people who previously held K4DF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4DF, oldest first.
- HUNSICKER, WILLIAM R FL2007-04-04 → cancelled 2019-06-18
- Gardner, Judith A FL2019-07-06 active