Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4MHT callsign genealogy
Currently held by Trepanier, Marc 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 W4MHT's current licensee, walking backwards.
- Trepanier, Marc HNHgranted 2021-03-15cancelled 2021-04-03
Successor callsigns
Callsigns held now by people who previously held W4MHT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4MHT, oldest first.
- Mc Mahon Jr, George F FL2004-10-04 → cancelled 2016-12-14
- Trepanier, Marc H NH2021-04-03 active