Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4UI callsign genealogy
Currently held by EMMONS, BOBBY G
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 N4UI's current licensee, walking backwards.
- MALLARD, BRIAN JSCgranted 2012-11-06cancelled 2018-12-28
Successor callsigns
Callsigns held now by people who previously held N4UI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4UI, oldest first.
- EMMONS, BOBBY G TN2007-07-06 → cancelled 2016-12-09
- MALLARD, BRIAN J SC2018-12-28 active