Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4USD callsign genealogy
Currently held by US Digital Amateur Repeater 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 K4USD's current licensee, walking backwards.
- KI4PWRcancelledUS Digital Amateur Repeater ClubGAgranted 2006-06-20cancelled 2006-07-11
Successor callsigns
Callsigns held now by people who previously held K4USD.
No current licensee on record previously held this callsign.