Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KS9O callsign genealogy
Currently held by MILHORN, KEVIN N
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 KS9O's current licensee, walking backwards.
- Hornsby, Matt LWAgranted 2010-01-27cancelled 2013-09-14
Successor callsigns
Callsigns held now by people who previously held KS9O.
- MILHORN, KEVIN NFLgranted 2019-04-25
All historical holders
Every license row we've seen with the callsign KS9O, oldest first.
- Hornsby, Matt L WA2023-06-28 active
- MILHORN, KEVIN N— → cancelled 1999-06-02