Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0SGG callsign genealogy
Currently held by Debo, John C
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 K0SGG's current licensee, walking backwards.
- Debo, John CFLgranted 2009-01-12cancelled 2009-01-31
Successor callsigns
Callsigns held now by people who previously held K0SGG.
No current licensee on record previously held this callsign.