Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1FDH callsign genealogy
Currently held by Morris, Rudolph 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 K1FDH's current licensee, walking backwards.
- Morris, Rudolph CSDgranted 2010-07-07cancelled 2011-01-21
Successor callsigns
Callsigns held now by people who previously held K1FDH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K1FDH, oldest first.
- MORRIS, RUDOLPH C SD1998-04-28 → cancelled 2010-04-29
- Morris, Rudolph C CO2021-01-20 active