Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4DPD callsign genealogy
Currently held by Doan, Donald 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 N4DPD's current licensee, walking backwards.
- Doan, Donald PFLgranted 2021-07-16cancelled 2021-08-24
Successor callsigns
Callsigns held now by people who previously held N4DPD.
- Doan, Donald PFLgranted 2022-03-04
All historical holders
Every license row we've seen with the callsign N4DPD, oldest first.
- DAVIS, DUDLEY P FL2008-08-13 → cancelled 2020-10-30
- Doan, Donald P FL2021-08-24 → cancelled 2022-03-04