Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4DJF callsign genealogy
Currently held by Fox, 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 W4DJF's current licensee, walking backwards.
- Fox Sr, Donald JFLgranted 2013-05-21cancelled 2013-12-17
Successor callsigns
Callsigns held now by people who previously held W4DJF.
- Barker, Michael VTNgranted 2021-12-01
All historical holders
Every license row we've seen with the callsign W4DJF, oldest first.
- Barker, Michael V TN2010-01-09 → cancelled 2011-11-01
- Fox, Donald J TN2023-12-12 active