Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD5KFU callsign genealogy
Currently held by HOLBROOK JR, ROBERT L
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 KD5KFU's current licensee, walking backwards.
- HOLBROOK JR, ROBERT LTXgranted 1990-07-10cancelled 2000-05-23
Successor callsigns
Callsigns held now by people who previously held KD5KFU.
No current licensee on record previously held this callsign.