Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0WST callsign genealogy
Currently held by Tustin, Warren S
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 N0WST's current licensee, walking backwards.
- Tustin, Warren SCOgranted 2021-07-07cancelled 2021-07-27
Successor callsigns
Callsigns held now by people who previously held N0WST.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0WST, oldest first.
- LO, YEH CO1993-05-11 → cancelled 2005-05-12
- Tustin, Warren S CO2021-07-27 active