Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9MDR callsign genealogy
Currently held by KIDD, WILLIAM H
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 K9MDR's current licensee, walking backwards.
- Reeves, MarkNCgranted 2024-11-23cancelled 2025-09-03
Successor callsigns
Callsigns held now by people who previously held K9MDR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9MDR, oldest first.
- KIDD, WILLIAM H IL2012-12-17 → cancelled 2025-02-11
- Reeves, Mark NC2025-09-03 active