Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB1VSM callsign genealogy
Currently held by Kostecke III, Stephen 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 KB1VSM's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KB1VSM.
- Kostecke III, Stephen TNDgranted 2021-07-20