Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9DSX callsign genealogy
Currently held by MAYSE, 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 W9DSX's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W9DSX.
- MAYSE, THOMAS MTXgranted 2003-04-22cancelled 2005-07-23