Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9AID callsign genealogy
Currently held by Rios, Helen
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 K9AID's current licensee, walking backwards.
- Rios, HelenILgranted 2008-04-14cancelled 2018-02-09
Successor callsigns
Callsigns held now by people who previously held K9AID.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9AID, oldest first.
- COOK, KIMBERLEE S CA2006-01-21 → cancelled 2018-01-23
- Rios, Helen IL2018-02-09 active