Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4ADF callsign genealogy
Currently held by Atkinson, Derrell F
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 N4ADF's current licensee, walking backwards.
- Atkinson, Derrell FSCgranted 2015-08-18cancelled 2021-11-27
Successor callsigns
Callsigns held now by people who previously held N4ADF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4ADF, oldest first.
- SMITH JR, JOSEPH H TX1996-11-29 → cancelled 2008-12-02
- Atkinson, Derrell F SC2021-11-27 active