Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9MBK callsign genealogy
Currently held by Kirby, Michael B
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 K9MBK's current licensee, walking backwards.
- Kirby, Michael BCAgranted 2017-01-05cancelled 2017-01-24
Successor callsigns
Callsigns held now by people who previously held K9MBK.
No current licensee on record previously held this callsign.