Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4DAU callsign genealogy
Currently held by Underdown, Dustin 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 N4DAU's current licensee, walking backwards.
- Underdown, Dustin ANCgranted 2015-07-31cancelled 2015-10-27
Successor callsigns
Callsigns held now by people who previously held N4DAU.
No current licensee on record previously held this callsign.