Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4MBC callsign genealogy
Currently held by Branner, Michael L
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 K4MBC's current licensee, walking backwards.
- Branner, Michael LVAgranted 2012-06-12cancelled 2012-08-28
Successor callsigns
Callsigns held now by people who previously held K4MBC.
No current licensee on record previously held this callsign.