Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4DWM callsign genealogy
Currently held by MATHER, DAVID 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 K4DWM's current licensee, walking backwards.
- MATHER, DAVID WKYgranted 2005-09-07cancelled 2006-05-12
Successor callsigns
Callsigns held now by people who previously held K4DWM.
No current licensee on record previously held this callsign.