Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NS4J callsign genealogy
Currently held by HOPKINS, SAMUEL F
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 NS4J's current licensee, walking backwards.
- CHAMBERLAIN, JAY FVAgranted 2002-02-19cancelled 2007-06-26
- KD4OOIno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held NS4J.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NS4J, oldest first.
- HOPKINS, SAMUEL F FL1996-05-17 → cancelled 1999-11-23
- CHAMBERLAIN, JAY F VA2017-04-03 active