Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD6WK callsign genealogy
Currently held by MARMADUKE JR, WILLIAM E
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 AD6WK's current licensee, walking backwards.
- Marmaduke, William ECAgranted 1997-06-07cancelled 2001-04-17
Successor callsigns
Callsigns held now by people who previously held AD6WK.
No current licensee on record previously held this callsign.