Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W6SOY callsign genealogy
Currently held by Grantham, Gregory W
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 W6SOY's current licensee, walking backwards.
- Grantham, Gregory WIDgranted 2024-04-10cancelled 2024-04-30
Successor callsigns
Callsigns held now by people who previously held W6SOY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6SOY, oldest first.
- CHEN, TONI CA2010-11-02 → cancelled 2022-11-03
- Grantham, Gregory W ID2024-04-30 active