Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR5MKY callsign genealogy
Currently held by Riddle Jr, Michael C
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 KR5MKY's current licensee, walking backwards.
- Riddle Jr, Michael CTXgranted 2023-05-24cancelled 2023-06-22
Successor callsigns
Callsigns held now by people who previously held KR5MKY.
No current licensee on record previously held this callsign.