Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB9ALX callsign genealogy
Currently held by SHIN, Alexander
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 KB9ALX's current licensee, walking backwards.
- SHIN, ALEXANDERILgranted 2022-02-15cancelled 2022-03-08
Successor callsigns
Callsigns held now by people who previously held KB9ALX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB9ALX, oldest first.
- ANDERSON, CHRISTOPHER L IN2008-01-24 → cancelled 2020-02-26
- SHIN, Alexander IL2022-03-08 active