Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF4DD callsign genealogy
Currently held by Kamen, E Gerald
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 KF4DD's current licensee, walking backwards.
- DOSTER, DANNY JALgranted 2017-05-03cancelled 2023-09-23
Successor callsigns
Callsigns held now by people who previously held KF4DD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KF4DD, oldest first.
- Kamen, E Gerald FL2007-11-27 → cancelled 2020-02-20
- DOSTER, DANNY J AL2023-09-23 active