Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK9U callsign genealogy
Currently held by JUNK, MARK P
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 KK9U's current licensee, walking backwards.
- McMahon, Sean FILgranted 2016-05-05cancelled 2020-07-24
Successor callsigns
Callsigns held now by people who previously held KK9U.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KK9U, oldest first.
- DODSON, KENNETH C IL1995-06-20 → cancelled 2004-01-28
- JUNK, MARK P IN2017-05-02 → cancelled 2018-07-04
- McMahon, SEAN F WA2020-07-24 active