Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K8MD callsign genealogy
Currently held by Mueller, Robert E
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 K8MD's current licensee, walking backwards.
- Mueller, Robert EOHgranted 2014-02-25cancelled 2015-05-29
Successor callsigns
Callsigns held now by people who previously held K8MD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K8MD, oldest first.
- DABISH, MARK MI2012-10-11 → cancelled 2013-05-08
- Mueller, Robert E OH2025-03-15 active