Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4WMJ callsign genealogy
Currently held by JAMES JR, 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 W4WMJ's current licensee, walking backwards.
- James Jr, William MVAgranted 2016-02-19cancelled 2016-03-11
Successor callsigns
Callsigns held now by people who previously held W4WMJ.
- JACKSON, WILLIAM MNCgranted 2003-05-30cancelled 2015-06-02
All historical holders
Every license row we've seen with the callsign W4WMJ, oldest first.
- JACKSON, WILLIAM M NC2002-12-03 → cancelled 2003-05-30
- JAMES JR, WILLIAM M VA2026-02-19 active