Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9DWM callsign genealogy
Currently held by Montgomery Jr, Douglas W
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 W9DWM's current licensee, walking backwards.
- Montgomery Jr, Douglas WINgranted 2023-02-01cancelled 2023-02-22
Successor callsigns
Callsigns held now by people who previously held W9DWM.
No current licensee on record previously held this callsign.