Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4KHU callsign genealogy
Currently held by WATSON, JAMES A
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 KD4KHU's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KD4KHU.
No current licensee on record previously held this callsign.