Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD9OK callsign genealogy
Currently held by Brock, Sherry L
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 KD9OK's current licensee, walking backwards.
- Brock, SherryILgranted 2016-02-25cancelled 2016-06-10
Successor callsigns
Callsigns held now by people who previously held KD9OK.
No current licensee on record previously held this callsign.