Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0SAK callsign genealogy
Currently held by Kosak, Bruce G
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 K0SAK's current licensee, walking backwards.
- Kosak, Bruce GNDgranted 2018-10-11cancelled 2018-11-06
Successor callsigns
Callsigns held now by people who previously held K0SAK.
No current licensee on record previously held this callsign.