Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD5WCW callsign genealogy
Currently held by Thompson, Matthew S
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 KD5WCW's current licensee, walking backwards.
- Thompson, Matthew SARgranted 2022-02-01cancelled 2022-02-23
Successor callsigns
Callsigns held now by people who previously held KD5WCW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD5WCW, oldest first.
- Thompson, Leonard W AR2003-04-11 → cancelled 2015-04-14
- Thompson, Matthew S AR2022-02-23 active