Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N2KSO callsign genealogy
Currently held by ITOH, NOBUYASU
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 N2KSO's current licensee, walking backwards.
- ITOH, NOBUYASUWAgranted 1997-02-28cancelled 2006-03-18
Successor callsigns
Callsigns held now by people who previously held N2KSO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N2KSO, oldest first.
- AARONSON, ALAN M NY1990-05-29 → cancelled 2002-05-30
- ITOH, NOBUYASU AZ2017-08-08 active