Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3MDT callsign genealogy
Currently held by Thibodeau, Matthew D
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 W3MDT's current licensee, walking backwards.
- Del Tito, Michael JPAgranted 2026-02-25cancelled 2026-03-17
Successor callsigns
Callsigns held now by people who previously held W3MDT.
- Thibodeau, MatthewCTgranted 2017-07-18
All historical holders
Every license row we've seen with the callsign W3MDT, oldest first.
- Thibodeau, Matthew D CT2015-10-14 → cancelled 2017-07-18
- Del Tito, Michael J PA2026-03-17 active