Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ6MBZ callsign genealogy
Currently held by Lam, Hong
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 KJ6MBZ's current licensee, walking backwards.
- Lam, HongCAgranted 2024-09-05cancelled 2024-11-26
Successor callsigns
Callsigns held now by people who previously held KJ6MBZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KJ6MBZ, oldest first.
- Lam, Hong CA2011-01-06 → cancelled 2023-01-07
- Lam, Hong CA2024-11-26 active