Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W6UWB callsign genealogy
Currently held by TOSCH, MICHAEL J
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 W6UWB's current licensee, walking backwards.
- TOSCH, MICHAEL JCAgranted 1993-11-02cancelled 2001-06-30
Successor callsigns
Callsigns held now by people who previously held W6UWB.
- Tosch, Michael JCAgranted 2021-01-05