Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4SIW callsign genealogy
Currently held by Hoffman, Chava 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 N4SIW's current licensee, walking backwards.
- Hoffman, Chava STNgranted 2018-06-18cancelled 2018-10-06
Successor callsigns
Callsigns held now by people who previously held N4SIW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4SIW, oldest first.
- CHATHAM, JOHN B VA2008-04-11 → cancelled 2018-07-02
- Hoffman, Chava S TN2018-10-06 active