Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4DDY callsign genealogy
Currently held by DEER JR, HENRY G
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 KD4DDY's current licensee, walking backwards.
- Harris, Matthew JUTgranted 2019-03-27
Successor callsigns
Callsigns held now by people who previously held KD4DDY.
- Harris, Matthew JUTgranted 2019-03-27
All historical holders
Every license row we've seen with the callsign KD4DDY, oldest first.
- DEER JR, HENRY G FL2001-07-21 → cancelled 2013-07-12
- Harris, Matthew J ME2019-02-20 → cancelled 2019-03-27