Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9RFD callsign genealogy
Currently held by Dunham, Robert F
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 KC9RFD's current licensee, walking backwards.
- Dunham, Robert FWIgranted 2008-02-06cancelled 2008-02-26
Successor callsigns
Callsigns held now by people who previously held KC9RFD.
- DUNHAM, ROBERT FWIgranted 2018-01-30