Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4DDR callsign genealogy
Currently held by Harding, Kenneth P
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 N4DDR's current licensee, walking backwards.
- Richardson, Dudley CVAgranted 2018-04-16cancelled 2020-02-25
Successor callsigns
Callsigns held now by people who previously held N4DDR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4DDR, oldest first.
- Harding, Kenneth P FL2004-12-22 → cancelled 2017-03-15
- Richardson, Dudley C VA2020-02-25 active