Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9ROK callsign genealogy
Currently held by Doo, Bong
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 K9ROK's current licensee, walking backwards.
- Doo, BongCAgranted 2006-11-02cancelled 2006-12-05
Successor callsigns
Callsigns held now by people who previously held K9ROK.
No current licensee on record previously held this callsign.