Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AF6XB callsign genealogy
Currently held by Yau, Stephen
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 AF6XB's current licensee, walking backwards.
- Yau, StephenCAgranted 2010-02-22cancelled 2010-05-17
Successor callsigns
Callsigns held now by people who previously held AF6XB.
No current licensee on record previously held this callsign.