Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6VSF callsign genealogy
Currently held by San Francisco Amateur Radio Club
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 W6VSF's current licensee, walking backwards.
- KO6IFHcancelledSF VA Amateur Radio ClubCAgranted 2025-02-26cancelled 2025-03-21
Successor callsigns
Callsigns held now by people who previously held W6VSF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6VSF, oldest first.
- San Francisco Amateur Radio Club CA2011-05-06 → cancelled 2020-02-25
- SF VA Amateur Radio Club CA2025-03-21 active