Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9UI callsign genealogy
Currently held by Weiss, Donald G
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 K9UI's current licensee, walking backwards.
- Weiss, Donald GTXgranted 2001-02-20cancelled 2001-03-13
Successor callsigns
Callsigns held now by people who previously held K9UI.
No current licensee on record previously held this callsign.