Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI7FS callsign genealogy
Currently held by Woo, Vincent
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 AI7FS's current licensee, walking backwards.
- Woo, VincentORgranted 2021-02-24cancelled 2021-03-01
Successor callsigns
Callsigns held now by people who previously held AI7FS.
- Woo, VincentORgranted 2021-08-06