Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6SBB callsign genealogy
Currently held by Topolinski, Sheryl A
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 K6SBB's current licensee, walking backwards.
- Topolinski, Sheryl ACAgranted 2020-05-20cancelled 2020-06-09
Successor callsigns
Callsigns held now by people who previously held K6SBB.
No current licensee on record previously held this callsign.