Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA4TSM callsign genealogy
Currently held by Spainhour, Stephen E
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 WA4TSM's current licensee, walking backwards.
- Spainhour, Stephen EVAgranted 2017-12-22cancelled 2020-10-20
Successor callsigns
Callsigns held now by people who previously held WA4TSM.
All historical holders
Every license row we've seen with the callsign WA4TSM, oldest first.
- Spainhour, Stephen E VA2017-05-01 → cancelled 2017-12-22
- Spainhour, Stephen E VA2020-10-20 → cancelled 2024-02-13