Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N3BR callsign genealogy
Currently held by ROSENBERG, ROBERT
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 N3BR's current licensee, walking backwards.
- PORTER, JOHN MDEgranted 2010-04-26cancelled 2011-01-21
Successor callsigns
Callsigns held now by people who previously held N3BR.
- Adamson, Steven FAZgranted 2008-12-30cancelled 2020-12-31
All historical holders
Every license row we've seen with the callsign N3BR, oldest first.
- ROSENBERG, ROBERT MD1996-09-04 → cancelled 2006-05-10
- Adamson, Steven F NJ2008-06-06 → cancelled 2008-12-30
- Porter, John M DE2020-11-24 active