Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4DOU callsign genealogy
Currently held by HOFFMAN, DOUGLAS 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 W4DOU's current licensee, walking backwards.
- HOFFMAN, DOUGLAS ETNgranted 2021-03-03cancelled 2023-08-26
Successor callsigns
Callsigns held now by people who previously held W4DOU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4DOU, oldest first.
- SIGMON JR, ROSS M NC1998-02-27 → cancelled 2010-03-02
- HOFFMAN, DOUGLAS E TN2023-08-26 active