Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W6MTW callsign genealogy
Currently held by WILTERMUTH, MATTHEW T
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 W6MTW's current licensee, walking backwards.
- WILTERMUTH, MATTHEW TCAgranted 2012-12-07cancelled 2021-07-27
Successor callsigns
Callsigns held now by people who previously held W6MTW.
- Welch, Michael TTXgranted 2019-07-06
All historical holders
Every license row we've seen with the callsign W6MTW, oldest first.
- Welch, Michael T TX2013-02-26 → cancelled 2019-07-06
- WILTERMUTH, MATTHEW T CA2021-07-27 active