Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI6SY callsign genealogy
Currently held by Kim, William Y
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 AI6SY's current licensee, walking backwards.
- Kim, William YCAgranted 2016-03-21cancelled 2016-09-16
Successor callsigns
Callsigns held now by people who previously held AI6SY.
No current licensee on record previously held this callsign.