Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4IDJ callsign genealogy
Currently held by UHLAND, WILLIAM C
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 K4IDJ's current licensee, walking backwards.
- Plott, Edward MALgranted 2018-10-17cancelled 2018-11-06
Successor callsigns
Callsigns held now by people who previously held K4IDJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4IDJ, oldest first.
- UHLAND, WILLIAM C GA2006-08-01 → cancelled 2018-10-17
- Plott, Edward M AL2018-11-06 active