Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W5MDX callsign genealogy
Currently held by Denton, Mark
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 W5MDX's current licensee, walking backwards.
- Denton, MarkMSgranted 2009-03-16cancelled 2010-09-08
Successor callsigns
Callsigns held now by people who previously held W5MDX.
No current licensee on record previously held this callsign.