Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1DUC callsign genealogy
Currently held by MORGAN, FRANK H
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 W1DUC's current licensee, walking backwards.
- Duck, Brian KMIgranted 2010-03-24cancelled 2010-04-13
Successor callsigns
Callsigns held now by people who previously held W1DUC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1DUC, oldest first.
- MORGAN, FRANK H RI1994-07-13 → cancelled 2006-07-14
- Duck, Brian K MI2020-03-24 active