Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC4RAF callsign genealogy
Currently held by Liebermann, Ralph W
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 KC4RAF's current licensee, walking backwards.
- FERRIS, ROGER AFLgranted 2015-10-05cancelled 2015-11-10
Successor callsigns
Callsigns held now by people who previously held KC4RAF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC4RAF, oldest first.
- Liebermann, Ralph W NV2001-06-15 → cancelled 2013-09-11
- FERRIS, ROGER A FL2015-11-10 active