Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9TMT callsign genealogy
Currently held by Thorne, Thomas M
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 W9TMT's current licensee, walking backwards.
- Thorne, Thomas MTNgranted 2017-10-05cancelled 2018-12-01
Successor callsigns
Callsigns held now by people who previously held W9TMT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9TMT, oldest first.
- PIECKO, PAUL T IL1995-06-14 → cancelled 2007-06-15
- Thorne, Thomas M TN2018-12-01 active