Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4TPS callsign genealogy
Currently held by SIMPSON, THOMAS P
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 W4TPS's current licensee, walking backwards.
- SIMPSON, THOMAS PNCgranted 2012-05-23cancelled 2016-06-10
Successor callsigns
Callsigns held now by people who previously held W4TPS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4TPS, oldest first.
- GRAY, MINTON L TN1988-02-16 → cancelled 2000-02-17
- SIMPSON, THOMAS P NC2016-06-10 active