Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1SMT callsign genealogy
Currently held by SPATES, CLIFFORD 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 W1SMT's current licensee, walking backwards.
- Thomas, Simon MMEgranted 2017-11-28cancelled 2017-12-19
Successor callsigns
Callsigns held now by people who previously held W1SMT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1SMT, oldest first.
- SPATES, CLIFFORD I MA1995-07-18 → cancelled 2007-07-19
- Thomas, Simon M ME2017-12-19 active