Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NA1US callsign genealogy
Currently held by Seymour Tactical Amateur Radio Club
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 NA1US's current licensee, walking backwards.
- KC1KSXcancelledSeymour Tactical Amateur Radio ClubCTgranted 2018-12-31cancelled 2019-02-20
Successor callsigns
Callsigns held now by people who previously held NA1US.
- CARTER, DAVID AKSgranted 2004-02-18cancelled 2004-09-17
All historical holders
Every license row we've seen with the callsign NA1US, oldest first.
- CARTER, DAVID A KS2003-12-30 → cancelled 2004-02-18
- Seymour Tactical Amateur Radio Club CT2019-02-20 active