Confidence: Medium · Source: FCC ULS · As of 2026-09-11
W4MKB callsign genealogy
Currently held by BROWN, MICHAEL K
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 W4MKB's current licensee, walking backwards.
- BRIGHT, THOMAS MNCgranted 2022-02-28cancelled 2022-04-23
Successor callsigns
Callsigns held now by people who previously held W4MKB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4MKB, oldest first.
- BROWN, MICHAEL K VA2009-12-25 → cancelled 2022-02-23
- BRIGHT, THOMAS M NC2022-04-23 active