Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6TOY callsign genealogy
Currently held by Cho, Seung
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 W6TOY's current licensee, walking backwards.
- Tejeda Jr., ArmandoCAgranted 2021-08-16cancelled 2021-09-14
Successor callsigns
Callsigns held now by people who previously held W6TOY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6TOY, oldest first.
- MUSCOLINO, BRUCE J MD1997-07-21 → cancelled 2004-08-20
- Cho, Seung CA2013-04-05 → cancelled 2014-05-23
- Tejeda Jr., Armando CA2021-09-14 active