Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9GX callsign genealogy
Currently held by WILLIAMS, MARK 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 K9GX's current licensee, walking backwards.
- WILLIAMS, MARK SKYgranted 1998-02-19cancelled 2000-10-07
Successor callsigns
Callsigns held now by people who previously held K9GX.
No current licensee on record previously held this callsign.