Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9ASH callsign genealogy
Currently held by Johnson, Duane E
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 K9ASH's current licensee, walking backwards.
- Johnson, Duane EILgranted 2022-06-08cancelled 2024-04-05
Successor callsigns
Callsigns held now by people who previously held K9ASH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9ASH, oldest first.
- Rozolosky, Jim A PA2008-05-20 → cancelled 2020-05-21
- Johnson, Duane E IL2024-04-05 active