Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WD9MJD callsign genealogy
Currently held by Dewitz, Matthew J
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 WD9MJD's current licensee, walking backwards.
- Dewitz, Matthew JWIgranted 2016-01-21cancelled 2016-02-13
Successor callsigns
Callsigns held now by people who previously held WD9MJD.
No current licensee on record previously held this callsign.