Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4DUI callsign genealogy
Currently held by SMENNER JR, JOHN E
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 N4DUI's current licensee, walking backwards.
- SMENNER JR, JOHN EGAgranted 2024-02-10
Successor callsigns
Callsigns held now by people who previously held N4DUI.
- SMENNER JR, JOHN EGAgranted 2024-02-10