Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N9TTK callsign genealogy
Currently held by Ogle, Justin 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 N9TTK's current licensee, walking backwards.
- Ogle, Justin EINgranted 2020-05-29cancelled 2022-03-18
Successor callsigns
Callsigns held now by people who previously held N9TTK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9TTK, oldest first.
- MC DERMID, JOHN E WI2003-12-03 → cancelled 2016-03-02
- Ogle, Justin E IN2022-03-18 active