Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA4FCS callsign genealogy
Currently held by WILLIAMS, WILLIAM 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 KA4FCS's current licensee, walking backwards.
- Large, Brandon HTNgranted 2011-05-23cancelled 2011-06-10
Successor callsigns
Callsigns held now by people who previously held KA4FCS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA4FCS, oldest first.
- WILLIAMS, WILLIAM L TN1994-03-15 → cancelled 2001-09-05
- Large, Brandon H TN2021-06-07 active