Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4DRX callsign genealogy
Currently held by Rausch, Walter 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 KD4DRX's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KD4DRX.
- Nielsen, Brian CCAgranted 2020-07-08
All historical holders
Every license row we've seen with the callsign KD4DRX, oldest first.
- NIELSEN, BRIAN C TX1991-08-06 → cancelled 2000-04-25
- Rausch, Walter J NC2024-11-22 active