Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR3KUP callsign genealogy
Currently held by Cooper, Michael R
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 KR3KUP's current licensee, walking backwards.
- Cooper, Michael RALgranted 2024-06-01cancelled 2024-06-25
Successor callsigns
Callsigns held now by people who previously held KR3KUP.
No current licensee on record previously held this callsign.