Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7STF callsign genealogy
Currently held by LARSON, RALPH A
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 W7STF's current licensee, walking backwards.
- FORTIN, SAMUEL TNYgranted 2020-03-19cancelled 2022-01-21
Successor callsigns
Callsigns held now by people who previously held W7STF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7STF, oldest first.
- LARSON, RALPH A UT2007-10-23 → cancelled 2019-12-17
- FORTIN, SAMUEL T NY2022-01-21 active