Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD4LTM callsign genealogy
Currently held by Hogan, David
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 KD4LTM's current licensee, walking backwards.
- Hogan, DavidVAgranted 2026-04-25cancelled 2026-05-15
Successor callsigns
Callsigns held now by people who previously held KD4LTM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD4LTM, oldest first.
- MACHILASKI, GEORGE J KY1992-03-24 → cancelled 2004-03-25
- Hogan, David VA2026-05-15 active