Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N2OTX callsign genealogy
Currently held by MASTRION, RON
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 N2OTX's current licensee, walking backwards.
- Smith, David BALgranted 2023-04-19cancelled 2024-08-02
Successor callsigns
Callsigns held now by people who previously held N2OTX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N2OTX, oldest first.
- MASTRION, RON NY2001-12-19 → cancelled 2013-12-14
- Smith, David B AL2024-08-02 active