Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9DU callsign genealogy
Currently held by REICHERT, DUANE A
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 K9DU's current licensee, walking backwards.
- Janke, James DMNgranted 2003-10-07cancelled 2006-11-18
Successor callsigns
Callsigns held now by people who previously held K9DU.
- REICHERT, DUANE AWAgranted 2004-10-30cancelled 2005-03-02
All historical holders
Every license row we've seen with the callsign K9DU, oldest first.
- REICHERT, DUANE A WA1999-06-10 → cancelled 2004-10-30
- Janke, James D MN2016-09-13 active