Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KW7S callsign genealogy
Currently held by Duck, Steven 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 KW7S's current licensee, walking backwards.
- Duck, Steven EORgranted 2013-04-22cancelled 2014-08-23
Successor callsigns
Callsigns held now by people who previously held KW7S.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KW7S, oldest first.
- MC KENTY, JAMES D OR2002-07-31 → cancelled 2014-08-05
- Duck, Steven E OR2024-06-06 active