Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WT5SF callsign genealogy
Currently held by WILLIAMS, TIMOTHY R
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 WT5SF's current licensee, walking backwards.
- WILLIAMS, TIMOTHY RKYgranted 2000-05-31cancelled 2010-03-06
Successor callsigns
Callsigns held now by people who previously held WT5SF.
No current licensee on record previously held this callsign.