Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC0UGS callsign genealogy
Currently held by Efram, Robert D
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 KC0UGS's current licensee, walking backwards.
- Efram, Robert DCOgranted 1999-01-18cancelled 2005-04-13
Successor callsigns
Callsigns held now by people who previously held KC0UGS.
No current licensee on record previously held this callsign.