Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4SK callsign genealogy
Currently held by AVERY, WILLIAM 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 N4SK's current licensee, walking backwards.
- KI4ZXCcancelledSouth Atlanta Contest GroupGAgranted 2007-10-16cancelled 2007-12-18
Successor callsigns
Callsigns held now by people who previously held N4SK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4SK, oldest first.
- AVERY, WILLIAM A GA1999-02-25 → cancelled 2005-12-12
- South Atlanta Contest Group GA2017-11-20 active