Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD3H callsign genealogy
Currently held by JUDGE, GEORGE T
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 KD3H's current licensee, walking backwards.
- Mikucki, John JMDgranted 2017-09-18cancelled 2017-12-19
Successor callsigns
Callsigns held now by people who previously held KD3H.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD3H, oldest first.
- JUDGE, GEORGE T PA2005-09-12 → cancelled 2017-11-29
- Mikucki, John J MD2017-12-19 active