Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9SU callsign genealogy
Currently held by Quinn, Don
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 K9SU's current licensee, walking backwards.
- Quinn, DonGAgranted 2002-10-17cancelled 2003-05-02
Successor callsigns
Callsigns held now by people who previously held K9SU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9SU, oldest first.
- CONLEY, PAUL E OR1998-07-16 → cancelled 2001-04-13
- Quinn, Don GA2023-04-18 active