Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4DXM callsign genealogy
Currently held by DX Marathon Club
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 W4DXM's current licensee, walking backwards.
- KQ4OPOcancelledDX Marathon ClubFLgranted 2024-02-10cancelled 2024-03-01
Successor callsigns
Callsigns held now by people who previously held W4DXM.
No current licensee on record previously held this callsign.