Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD4MCK callsign genealogy
Currently held by HAGEMAN, JOHN 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 KD4MCK's current licensee, walking backwards.
- Kincer, Marla KKYgranted 2010-03-05cancelled 2010-04-06
Successor callsigns
Callsigns held now by people who previously held KD4MCK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD4MCK, oldest first.
- HAGEMAN, JOHN H NC1992-03-31 → cancelled 2004-04-01
- White, Marla K KY2020-02-13 active