Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC0SGN callsign genealogy
Currently held by Tomko III, Andrew M
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 KC0SGN's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KC0SGN.
- Tomko III, Andrew MMTgranted 2004-04-29cancelled 2008-05-30