Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB6U callsign genealogy
Currently held by WONG, JOHN 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 KB6U's current licensee, walking backwards.
- WONG, JOHN YCAgranted 2005-05-25cancelled 2007-04-03
Successor callsigns
Callsigns held now by people who previously held KB6U.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB6U, oldest first.
- SCHWEIGERT, REINHOLD A CA1994-07-14 → cancelled 2006-07-15
- WONG, JOHN Y CA2017-03-31 active