Confidence: Medium · Source: FCC ULS · As of 2026-09-11
KB4MCD callsign genealogy
Currently held by McDonald, Brian 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 KB4MCD's current licensee, walking backwards.
- McDonald, Brian MVAgranted 2022-11-26cancelled 2022-12-20
Successor callsigns
Callsigns held now by people who previously held KB4MCD.
- COOL SR, WILLIAM HNCgranted 2002-05-14cancelled 2007-05-19