Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9NNN callsign genealogy
Currently held by Morgan, Donald F
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 K9NNN's current licensee, walking backwards.
- Finkelstein, Ethan SWIgranted 2018-10-16cancelled 2022-03-15
Successor callsigns
Callsigns held now by people who previously held K9NNN.
- Morgan, Donald FMIgranted 2019-05-29
All historical holders
Every license row we've seen with the callsign K9NNN, oldest first.
- Morgan, Donald F WI2019-04-30 → cancelled 2019-05-29
- Finkelstein, Ethan S WI2022-03-15 active