Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1BAZ callsign genealogy
Currently held by Bingham, Sebastian
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 W1BAZ's current licensee, walking backwards.
- Bingham, SebastianTXgranted 2025-01-29cancelled 2025-02-19
Successor callsigns
Callsigns held now by people who previously held W1BAZ.
- BAZYDLO, MICHAEL JILgranted 2019-12-31
All historical holders
Every license row we've seen with the callsign W1BAZ, oldest first.
- BAZYDLO, MICHAEL J IL2019-12-07 → cancelled 2019-12-31
- Bingham, Sebastian TX2025-02-19 active