Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4JSW callsign genealogy
Currently held by Walworth, Jeremy S
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 N4JSW's current licensee, walking backwards.
- Walworth, Jeremy SFLgranted 2003-04-01cancelled 2003-05-02
Successor callsigns
Callsigns held now by people who previously held N4JSW.
No current licensee on record previously held this callsign.