Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB6SVM callsign genealogy
Currently held by Kosty, Michael 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 WB6SVM's current licensee, walking backwards.
- Kosty, Michael PCAgranted 2018-01-30cancelled 2018-02-21
Successor callsigns
Callsigns held now by people who previously held WB6SVM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WB6SVM, oldest first.
- KOSTY, MICHAEL P CA1996-07-15 → cancelled 2008-07-16
- Kosty, Michael P CA2018-02-21 active