Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC6KAZ callsign genealogy
Currently held by Chiao, Kaz
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 KC6KAZ's current licensee, walking backwards.
- Chiao, KazCAgranted 2021-05-13cancelled 2021-06-02
Successor callsigns
Callsigns held now by people who previously held KC6KAZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC6KAZ, oldest first.
- COLTEN, JOSEPH CA1990-04-10 → cancelled 2002-04-11
- Chiao, Kaz CA2021-06-02 active