Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4CSG callsign genealogy
Currently held by Gillenwater, Christopher 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 N4CSG's current licensee, walking backwards.
- Gillenwater, Christopher SVAgranted 2009-06-30cancelled 2015-03-27
Successor callsigns
Callsigns held now by people who previously held N4CSG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4CSG, oldest first.
- SWENSON, CHESTER F FL1995-07-24 → cancelled 2007-07-25
- Gillenwater, Christopher S VA2025-01-03 active