Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4SIL callsign genealogy
Currently held by Illgen, Steven W
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 N4SIL's current licensee, walking backwards.
- Illgen, Steven WTNgranted 2000-11-01cancelled 2001-08-15
Successor callsigns
Callsigns held now by people who previously held N4SIL.
- Illgen, Steven WTNgranted 2003-12-09cancelled 2013-11-13