Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7IDB callsign genealogy
Currently held by DANIELSEN, 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 W7IDB's current licensee, walking backwards.
- DANIELSEN, WILLIAM EWAgranted 2009-07-29cancelled 2018-01-09
Successor callsigns
Callsigns held now by people who previously held W7IDB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7IDB, oldest first.
- Dirks, David D OR2003-12-31 → cancelled 2016-03-23
- DANIELSEN, WILLIAM E WA2018-01-09 active