Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5SMS callsign genealogy
Currently held by GRAHAM, DOYNE 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 W5SMS's current licensee, walking backwards.
- SINAY, SEAN MTXgranted 2017-03-22cancelled 2017-04-15
Successor callsigns
Callsigns held now by people who previously held W5SMS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5SMS, oldest first.
- GRAHAM, DOYNE E TN2003-07-24 → cancelled 2015-09-15
- SINAY, SEAN M TX2017-04-15 active