Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4DJJ callsign genealogy
Currently held by JORENS, DIRK 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 K4DJJ's current licensee, walking backwards.
- JORENS, DIRK JNCgranted 2008-08-05cancelled 2010-07-30
Successor callsigns
Callsigns held now by people who previously held K4DJJ.
- JORENS, DIRK JNCgranted 2025-12-23
All historical holders
Every license row we've seen with the callsign K4DJJ, oldest first.
- BRUMBELOE, RENDA R OK1991-02-26 → cancelled 2003-02-27
- JORENS, DIRK J NC2020-09-01 → cancelled 2025-12-23