Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO6BDR callsign genealogy
Currently held by Schulenburg, Keith D
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 KO6BDR's current licensee, walking backwards.
- Schulenburg, Keith DCAgranted 2018-03-07cancelled 2023-09-07
Successor callsigns
Callsigns held now by people who previously held KO6BDR.
No current licensee on record previously held this callsign.