Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N0SNN callsign genealogy
Currently held by Great Places Contest Club
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 N0SNN's current licensee, walking backwards.
- WC7CWcancelledHilgers Gulch Contest ClubSDgranted 2017-01-19cancelled 2019-10-04
- KC7PCPno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held N0SNN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0SNN, oldest first.
- CASTILLO, JULIO C KS1992-05-12 → cancelled 2004-05-13
- Great Places Contest Club SD2019-10-04 active