Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W5MHN callsign genealogy
Currently held by Nau, Martin H
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 W5MHN's current licensee, walking backwards.
- Nau, Martin HTXgranted 2011-10-28cancelled 2011-11-15
Successor callsigns
Callsigns held now by people who previously held W5MHN.
No current licensee on record previously held this callsign.