Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0CBM callsign genealogy
Currently held by MELKUS, CHRISTOPHER 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 K0CBM's current licensee, walking backwards.
- MELKUS, CHRISTOPHER BCOgranted 2018-04-06cancelled 2018-04-24
Successor callsigns
Callsigns held now by people who previously held K0CBM.
No current licensee on record previously held this callsign.