Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1MBJ callsign genealogy
Currently held by Kim, Byung J
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 K1MBJ's current licensee, walking backwards.
- Kim, Byung JMDgranted 2016-02-03cancelled 2016-02-27
Successor callsigns
Callsigns held now by people who previously held K1MBJ.
No current licensee on record previously held this callsign.