Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9MIS callsign genealogy
Currently held by Tressler, Joshua A
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 W9MIS's current licensee, walking backwards.
- Tressler, Joshua AINgranted 2004-01-29cancelled 2004-02-18
Successor callsigns
Callsigns held now by people who previously held W9MIS.
- Tressler, Joshua AINgranted 2026-01-06