Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W6SID callsign genealogy
Currently held by REARWIN, STEPHEN D
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 W6SID's current licensee, walking backwards.
- Wong, Sidney SNCgranted 2025-06-14cancelled 2025-12-09
Successor callsigns
Callsigns held now by people who previously held W6SID.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6SID, oldest first.
- REARWIN, STEPHEN D CA2013-09-23 → cancelled 2025-01-08
- Wong, Sidney S NC2025-12-09 active