Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD9LYD callsign genealogy
Currently held by Probus II, Jeffrey 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 KD9LYD's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KD9LYD.
- Probus II, Jeffrey LILgranted 2018-12-11