Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NT9T callsign genealogy
Currently held by Shorter, D Steven
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 NT9T's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held NT9T.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NT9T, oldest first.
- LA MOTHE, RONALD J IN1997-08-20 → cancelled 2000-07-17
- Shorter, D Steven NC2013-01-23 → cancelled 2025-04-12
- Umemoto, Hijiri CA2025-05-02 active