Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD9USN callsign genealogy
Currently held by Sword, Jeffrey D
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 KD9USN's current licensee, walking backwards.
- Sword, Jeffrey DILgranted 2015-01-30cancelled 2015-02-20
Successor callsigns
Callsigns held now by people who previously held KD9USN.
No current licensee on record previously held this callsign.