Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4XDJ callsign genealogy
Currently held by DOUGLAS JR, 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 K4XDJ's current licensee, walking backwards.
- DOUGLAS JR, DONALD JVAgranted 2013-06-26cancelled 2013-07-16
Successor callsigns
Callsigns held now by people who previously held K4XDJ.
- DOUGLAS JR, DONALD JVAgranted 2018-12-04