Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC0UFN callsign genealogy
Currently held by Ringer, Mark E
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 KC0UFN'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 KC0UFN.
- Ringer, Mark ECOgranted 2019-03-09