Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB9KDX callsign genealogy
Currently held by YURS, HELEN 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 KB9KDX's current licensee, walking backwards.
- YURS, HELEN LILgranted 2004-04-17cancelled 2008-10-07
Successor callsigns
Callsigns held now by people who previously held KB9KDX.
- YURS, HELEN LILgranted 2004-04-17cancelled 2008-10-07
All historical holders
Every license row we've seen with the callsign KB9KDX, oldest first.
- YURS, HELEN L IL1995-04-26 → cancelled 2004-04-17
- YURS, HELEN L IL2018-10-01 active