Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N2DO callsign genealogy
Currently held by OSTRANDER, DON R
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 N2DO's current licensee, walking backwards.
- OSHIMA, HIDEYUKINJgranted 2007-01-26cancelled 2008-02-12
Successor callsigns
Callsigns held now by people who previously held N2DO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N2DO, oldest first.
- OSTRANDER, DON R NY1996-12-10 → cancelled 1999-04-15
- OSHIMA, HIDEYUKI NY2017-11-23 active