Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W7DDU callsign genealogy
Currently held by UHLER, DAVID D
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 W7DDU's current licensee, walking backwards.
- UHLER, DAVID DWAgranted 2014-03-05cancelled 2014-04-01
Successor callsigns
Callsigns held now by people who previously held W7DDU.
No current licensee on record previously held this callsign.