Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1SJ callsign genealogy
Currently held by Carvalho, Nuno
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 N1SJ's current licensee, walking backwards.
- Carvalho, NunoNJgranted 2020-03-19cancelled 2021-02-23
Successor callsigns
Callsigns held now by people who previously held N1SJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1SJ, oldest first.
- JOHNSON, STEVEN W MI2009-01-13 → cancelled 2021-02-04
- Carvalho, Nuno NJ2021-02-23 active