Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WN4JDM callsign genealogy
Currently held by Montgomery Jr, James 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 WN4JDM's current licensee, walking backwards.
- Montgomery Jr, James DGAgranted 2017-05-09cancelled 2017-05-31
Successor callsigns
Callsigns held now by people who previously held WN4JDM.
No current licensee on record previously held this callsign.