Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4BU callsign genealogy
Currently held by BURKE, MARSHA C
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 N4BU's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held N4BU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4BU, oldest first.
- Prine, Harry J FL2003-08-13 → cancelled 2005-04-17
- BURKE, MARSHA C FL2019-03-29 active