Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR4DW callsign genealogy
Currently held by Wilken, Dennis
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 KR4DW's current licensee, walking backwards.
- Wilken, DennisSCgranted 2025-08-12cancelled 2025-12-09
Successor callsigns
Callsigns held now by people who previously held KR4DW.
- STRICKLAND III, TREYTNgranted 2019-10-01
All historical holders
Every license row we've seen with the callsign KR4DW, oldest first.
- Wilken, Dennis SC2025-12-09 active
- —— → cancelled 1997-11-25