Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K8ZBW callsign genealogy
Currently held by Szyller, Filip M
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 K8ZBW's current licensee, walking backwards.
- Szyller, Filip MOHgranted 2023-11-25
Successor callsigns
Callsigns held now by people who previously held K8ZBW.
- Szyller, Filip MOHgranted 2023-11-25