Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5MDR callsign genealogy
Currently held by ROBERTS JR, MICHAEL 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 K5MDR's current licensee, walking backwards.
- ROBERTS JR, MICHAEL DTXgranted 2019-02-06cancelled 2019-04-12
Successor callsigns
Callsigns held now by people who previously held K5MDR.
No current licensee on record previously held this callsign.