Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N2CDO callsign genealogy
Currently held by LEWARK, JAMES 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 N2CDO's current licensee, walking backwards.
- Olin, Christopher DNYgranted 2010-07-01cancelled 2010-11-23
Successor callsigns
Callsigns held now by people who previously held N2CDO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N2CDO, oldest first.
- LEWARK, JAMES E CA1987-11-10 → cancelled 1999-11-11
- Olin, Christopher D NY2020-11-25 active