Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9WMJ callsign genealogy
Currently held by JUSTIS IV, WILLIAM 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 W9WMJ's current licensee, walking backwards.
- JUSTIS IV, WILLIAM MINgranted 2004-12-22cancelled 2010-11-23
Successor callsigns
Callsigns held now by people who previously held W9WMJ.
No current licensee on record previously held this callsign.