Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4DSU callsign genealogy
Currently held by QCWA CHAPTER 126
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 W4DSU's current licensee, walking backwards.
- KI4KPZcancelledQCWA CHAPTER 126NCgranted 2005-06-14cancelled 2005-07-12
Successor callsigns
Callsigns held now by people who previously held W4DSU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4DSU, oldest first.
- BUCHANAN, M L NC1998-01-26 → cancelled 2000-07-30
- QCWA CHAPTER 126 VA2025-07-19 active