Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4UBU callsign genealogy
Currently held by MITCHELL, TERRY L
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 N4UBU's current licensee, walking backwards.
- Smith, Alan GNCgranted 2022-01-10cancelled 2022-01-28
Successor callsigns
Callsigns held now by people who previously held N4UBU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4UBU, oldest first.
- MITCHELL, TERRY L OR1998-10-23 → cancelled 2010-10-26
- Smith, Alan G NC2022-01-28 active