Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9KAO callsign genealogy
Currently held by Chen, Xin
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 KC9KAO's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KC9KAO.
- CHEN, XINILgranted 2016-08-31