Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD9OBN callsign genealogy
Currently held by Marek, James P
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 KD9OBN'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 KD9OBN.
- Marek, James PINgranted 2020-06-19