Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N7SYD callsign genealogy
Currently held by NICOLET, JIM A
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 N7SYD's current licensee, walking backwards.
- NICOLET, JIM AWAgranted 2010-04-23cancelled 2013-11-22
Successor callsigns
Callsigns held now by people who previously held N7SYD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N7SYD, oldest first.
- SIEFKEN, ALLEN J OR1991-07-23 → cancelled 2003-07-24
- NICOLET, JIM A WA2023-11-04 active