Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD1J callsign genealogy
Currently held by JACOBSON, KEVIN D
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 KD1J's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KD1J.
No current licensee on record previously held this callsign.