Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WS1J callsign genealogy
Currently held by F.A.S.T
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 WS1J's current licensee, walking backwards.
- KB1FOScancelledF.A.S.TVTgranted 2000-08-22cancelled 2000-09-19
Successor callsigns
Callsigns held now by people who previously held WS1J.
- RINALDI, ROBERT JCTgranted 2016-04-08