Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K8CST callsign genealogy
Currently held by Trull Sr, Curtis 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 K8CST's current licensee, walking backwards.
- Trull Sr, Curtis STXgranted 2016-02-18cancelled 2016-03-29
Successor callsigns
Callsigns held now by people who previously held K8CST.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K8CST, oldest first.
- WILLIAMS SR, JOHN W MI1998-01-05 → cancelled 2010-01-06
- Trull Sr, Curtis S TX2026-01-21 active