Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4EDF callsign genealogy
Currently held by Greene, James B
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 K4EDF's current licensee, walking backwards.
- Greene, James BNCgranted 2020-02-07cancelled 2020-03-24
Successor callsigns
Callsigns held now by people who previously held K4EDF.
- Greene, James BNCgranted 2021-01-22cancelled 2023-08-01
All historical holders
Every license row we've seen with the callsign K4EDF, oldest first.
- STEIN, HARRY M AL1988-03-29 → cancelled 2000-03-30
- FLOYD, EDMOND D SC2004-01-30 → cancelled 2016-02-02
- Greene, James B NC2020-03-24 → cancelled 2021-01-22