Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W8MDJ callsign genealogy
Currently held by Johnson, Matthew D
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 W8MDJ's current licensee, walking backwards.
- Johnson, Matthew DOHgranted 2023-11-21cancelled 2023-12-27
Successor callsigns
Callsigns held now by people who previously held W8MDJ.
No current licensee on record previously held this callsign.