Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4DOK callsign genealogy
Currently held by Knight, William K
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 W4DOK's current licensee, walking backwards.
- Knight, William KGAgranted 2007-10-29cancelled 2008-04-15
Successor callsigns
Callsigns held now by people who previously held W4DOK.
No current licensee on record previously held this callsign.