Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4STW callsign genealogy
Currently held by WATSON JR, SAM T
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 W4STW's current licensee, walking backwards.
- WATSON JR, SAM TSCgranted 2009-06-09cancelled 2009-07-14
Successor callsigns
Callsigns held now by people who previously held W4STW.
- WATSON JR, SAM TSCgranted 2009-06-09cancelled 2009-07-14
All historical holders
Every license row we've seen with the callsign W4STW, oldest first.
- WATSON JR, SAM T SC2003-05-23 → cancelled 2009-06-09
- WATSON JR, SAM T SC2019-05-23 active