Confidence: Medium · Source: FCC ULS · As of 2026-09-11
KB9DEM callsign genealogy
Currently held by Mellenthin, Timothy M
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 KB9DEM's current licensee, walking backwards.
- Mellenthin, Timothy MWIgranted 2011-02-17cancelled 2016-06-01
Successor callsigns
Callsigns held now by people who previously held KB9DEM.