Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9ROQ callsign genealogy
Currently held by Keil, Chad W
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 K9ROQ's current licensee, walking backwards.
- Keil, Chad WILgranted 2015-04-24cancelled 2017-12-08
Successor callsigns
Callsigns held now by people who previously held K9ROQ.
No current licensee on record previously held this callsign.