Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N3NPD callsign genealogy
Currently held by ROSENTHAL, SCOTT B
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 N3NPD's current licensee, walking backwards.
- ROSENTHAL, SCOTT BMDgranted 2007-01-08cancelled 2007-02-13
Successor callsigns
Callsigns held now by people who previously held N3NPD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N3NPD, oldest first.
- ROSENTHAL, SCOTT B MD1992-11-10 → cancelled 2004-11-11
- ROSENTHAL, SCOTT B MD2017-01-10 active