Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4UUQ callsign genealogy
Currently held by Williams, Grant C
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 K4UUQ's current licensee, walking backwards.
- Williams, Grant CGAgranted 2013-05-22cancelled 2013-09-21
Successor callsigns
Callsigns held now by people who previously held K4UUQ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4UUQ, oldest first.
- WILLIAMS, JOEL A NC1997-03-26 → cancelled 2004-10-13
- Williams, Grant C GA2023-08-16 active