Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4UDG callsign genealogy
Currently held by Babel, David A
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 N4UDG's current licensee, walking backwards.
- Babel, David AFLgranted 2025-03-15cancelled 2025-04-04
Successor callsigns
Callsigns held now by people who previously held N4UDG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4UDG, oldest first.
- BABEL, DAVID A FL1998-11-04 → cancelled 2010-11-05
- Babel, David A FL2025-04-04 active