Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KM4DK callsign genealogy
Currently held by Knoblett, James 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 KM4DK's current licensee, walking backwards.
- Knoblett, James DKYgranted 2016-12-08cancelled 2019-04-05
Successor callsigns
Callsigns held now by people who previously held KM4DK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KM4DK, oldest first.
- TOWNSEND, GEORGE H FL1988-06-21 → cancelled 2000-06-22
- Knoblett, James D KY2019-04-05 active