Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1DHU callsign genealogy
Currently held by Wunderlich, Hugh
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 W1DHU's current licensee, walking backwards.
- Wunderlich, HughFLgranted 2026-06-10cancelled 2026-09-01
Successor callsigns
Callsigns held now by people who previously held W1DHU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1DHU, oldest first.
- SMITH, ROBERT J MA1995-06-06 → cancelled 2007-06-07
- Wunderlich, Hugh FL2026-09-01 active