Confidence: Medium · Source: FCC ULS · As of 2026-10-24
W5SIS callsign genealogy
Currently held by Spofford, Sara I
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 W5SIS's current licensee, walking backwards.
- Weiss, Michelle DTXgranted 2026-08-07cancelled 2026-10-16
Successor callsigns
Callsigns held now by people who previously held W5SIS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5SIS, oldest first.
- Spofford, Sara I PA2011-03-04 → cancelled 2023-03-07
- Weiss, Michelle D TX2026-10-16 active