Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7DUC callsign genealogy
Currently held by DUC, MICHAEL F
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 W7DUC's current licensee, walking backwards.
- DUC, MICHAEL FWAgranted 2012-02-23cancelled 2012-05-01
Successor callsigns
Callsigns held now by people who previously held W7DUC.
No current licensee on record previously held this callsign.