Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N6YUK callsign genealogy
Currently held by CHANG, ANDREW S
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 N6YUK's current licensee, walking backwards.
- CHANG, ANDREW SCAgranted 2015-01-21cancelled 2018-12-01
Successor callsigns
Callsigns held now by people who previously held N6YUK.
- CHANG, ANDREW SCAgranted 2015-01-21cancelled 2018-12-01
All historical holders
Every license row we've seen with the callsign N6YUK, oldest first.
- COLLISON, ROBERT M CA1991-09-24 → cancelled 2003-09-25
- CHANG, ANDREW S CA2013-11-16 → cancelled 2015-01-21