Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1MDT callsign genealogy
Currently held by Thibodeau, Matthew
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 W1MDT's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W1MDT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1MDT, oldest first.
- RODYN, IRA E FL1988-05-31 → cancelled 2000-06-01
- Thibodeau, Matthew CT2017-07-18 active