Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WN4JMU callsign genealogy
Currently held by JAMES MADISON UNIVERSITY WIRELESS EXPERIMENTERS GROUP
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 WN4JMU's current licensee, walking backwards.
- KG4KHYcancelledJAMES MADISON UNIVERSITY WIRELESS EXPERIMENTERS GROUPVAgranted 2000-11-07cancelled 2000-12-27
Successor callsigns
Callsigns held now by people who previously held WN4JMU.
No current licensee on record previously held this callsign.