Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0SGI callsign genealogy
Currently held by Silicon Graphics ARC
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 K0SGI's current licensee, walking backwards.
- KC0RUKcancelledSilicon Graphics ARCMNgranted 2004-03-03cancelled 2004-03-23
Successor callsigns
Callsigns held now by people who previously held K0SGI.
No current licensee on record previously held this callsign.