Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD0AR callsign genealogy
Currently held by HEIM, MICHAEL 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 KD0AR's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KD0AR.
No current licensee on record previously held this callsign.