Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4JMT callsign genealogy
Currently held by THOMPSON, JAMES 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 W4JMT's current licensee, walking backwards.
- THOMPSON, JAMES MNCgranted 2017-07-11cancelled 2025-01-03
Successor callsigns
Callsigns held now by people who previously held W4JMT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4JMT, oldest first.
- Tirey, John M AL2013-09-06 → cancelled 2024-12-17
- THOMPSON, JAMES M NC2025-01-03 active