Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7SID callsign genealogy
Currently held by Sosin, Sidney
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 W7SID's current licensee, walking backwards.
- Lemhi Amateur Radio ClubIDgranted 2020-02-10cancelled 2020-03-13
Successor callsigns
Callsigns held now by people who previously held W7SID.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7SID, oldest first.
- Sosin, Sidney WA2007-05-15 → cancelled 2019-05-16
- Lemhi Amateur Radio Club ID2020-03-13 active