Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1SGB callsign genealogy
Currently held by Blais, Seth G
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 W1SGB's current licensee, walking backwards.
- Blais, Seth GRIgranted 2020-10-19cancelled 2022-02-25
Successor callsigns
Callsigns held now by people who previously held W1SGB.
No current licensee on record previously held this callsign.