Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6MBB callsign genealogy
Currently held by Butler, Mitchel 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 K6MBB's current licensee, walking backwards.
- Butler, Mitchel BCAgranted 2007-10-23cancelled 2007-11-17
Successor callsigns
Callsigns held now by people who previously held K6MBB.
No current licensee on record previously held this callsign.