Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4CHF callsign genealogy
Currently held by ANDERSON, ROBERT C
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 KD4CHF's current licensee, walking backwards.
- ANDERSON, ROBERT CNCgranted 2017-09-11cancelled 2017-09-29
Successor callsigns
Callsigns held now by people who previously held KD4CHF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD4CHF, oldest first.
- RAMPEY, JAMES W SC1991-07-02 → cancelled 2003-07-03
- ANDERSON, ROBERT C NC2017-09-29 active