Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N9QA callsign genealogy
Currently held by WILLIAMS, CHARLES L
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 N9QA's current licensee, walking backwards.
- WILLIAMS, CHARLES LINgranted 2003-10-28cancelled 2011-03-01
Successor callsigns
Callsigns held now by people who previously held N9QA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9QA, oldest first.
- KNAUS, DAVID J WI2000-03-31 → cancelled 2009-02-05
- WILLIAMS, CHARLES L IN2020-12-29 active